feat: SDD workflow — test sync, song generation + validation, ReaScript hybrid pipeline
- compose-test-sync: fix 3 failing tests (NOTE_TO_MIDI, DrumLoopAnalyzer mock, section name) - generate-song: CLI wrapper + RPP validator (6 structural checks) + 4 e2e tests - reascript-hybrid: ReaScriptGenerator + command protocol + CLI + 16 unit tests - 110/110 tests passing - Full SDD cycle (propose→spec→design→tasks→apply→verify) for all 3 changes
This commit is contained in:
renato97
@@ -1,14 +1,16 @@
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#!/usr/bin/env python
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"""Drumloop-first REAPER .rpp project generator for reggaeton instrumental.
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"""REAPER .rpp reggaeton generator — based on proven Ableton arrangement.
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The drumloop drives EVERYTHING: BPM, key, rhythm all come from analysis.
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Bass, chords, lead, and pad are built to sync with the drumloop's rhythm.
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NO vocals — this is an instrumental-only generator.
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Uses REAL drumloop samples from the Ableton library (not scored random ones),
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and a PROVEN harmonic bass pattern from a working Ableton project.
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Drumloop arrangement: seco → filtrado → vacío → seco (repeating per section)
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808 Bass: i - iv - i - V pattern (A1 → D2 → A1 → E2) from Ableton project
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No vocals — instrumental only.
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Usage:
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python scripts/compose.py --output output/drumloop_v2.rpp
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python scripts/compose.py --bpm 95 --key Am --output output/song.rpp
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python scripts/compose.py --bpm 95 --key Am --seed 42 --output output/song.rpp
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python scripts/compose.py --output output/song.rpp
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python scripts/compose.py --bpm 99 --key Am --output output/song.rpp
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"""
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from __future__ import annotations
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@@ -24,11 +26,9 @@ from src.core.schema import (
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SongDefinition, SongMeta, TrackDef, ClipDef, MidiNote,
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PluginDef, SectionDef,
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)
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from src.composer.drum_analyzer import DrumLoopAnalyzer
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from src.selector import SampleSelector
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from src.reaper_builder import RPPBuilder, PLUGIN_REGISTRY, PLUGIN_PRESETS
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# ---------------------------------------------------------------------------
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# Constants
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# ---------------------------------------------------------------------------
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@@ -36,34 +36,83 @@ from src.reaper_builder import RPPBuilder, PLUGIN_REGISTRY, PLUGIN_PRESETS
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NOTE_NAMES = ["C", "C#", "D", "D#", "E", "F", "F#", "G", "G#", "A", "A#", "B"]
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NOTE_TO_MIDI = {n: i for i, n in enumerate(NOTE_NAMES)}
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ROLE_COLORS = {
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"drumloop": 3,
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"clap": 4,
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"bass": 5,
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"chords": 9,
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"lead": 11,
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"pad": 13,
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# Ableton drumloop paths (proven to sound good)
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ABLETON_DRUMLOOP_DIR = Path(
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r"C:\ProgramData\Ableton\Live 12 Suite\Resources\MIDI Remote Scripts"
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r"\libreria\reggaeton\drumloops"
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)
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# Drumloop arrangement per section:
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# Each section gets a drumloop variant: "seco", "filtrado", "empty", "seco"
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# This cycles through the sections
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DRUMLOOP_ASSIGNMENTS = {
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"intro": "filtrado", # filtered intro
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"verse": "seco", # dry verse
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"build": "filtrado", # building with filter
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"chorus": "seco", # full energy dry
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"break": "empty", # breakdown — no drumloop
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"chorus2": "seco", # full energy dry
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"bridge": "filtrado", # filtered bridge
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"final": "seco", # full energy
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"outro": "filtrado", # filtered outro
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}
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# Section structure: (name, bars, energy, has_clap)
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# Clap ONLY on chorus and verse sections
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SECTIONS = [
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("intro", 4, 0.4, False),
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("verse", 8, 0.6, True),
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("build", 4, 0.7, False),
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("chorus", 8, 1.0, True),
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("break", 4, 0.5, False),
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("chorus", 8, 1.0, True),
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("outro", 4, 0.3, False),
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# Drumloop files for each variant
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DRUMLOOP_FILES = {
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"seco": [
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"90bpm reggaeton antiguo drumloop.wav",
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"94bpm reggaeton antiguo 2 drumloop.wav",
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"100bpm_gata-only_drumloop.wav",
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],
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"filtrado": [
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"100bpm filtrado drumloop.wav",
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"100bpm contigo filtrado drumloop.wav",
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],
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}
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# 808 Bass pattern from Ableton project (proven harmonic):
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# i - iv - i - V in Am: A1(33) → D2(38) → A1(33) → E2(40)
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# Duration: 1.5 beats, velocity varies by section
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BASS_PATTERN_8BARS = [
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# Bars 1-2: root (i)
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{"pitch": 33, "start_time": 0.0, "duration": 1.5, "velocity": 80},
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{"pitch": 33, "start_time": 2.0, "duration": 1.5, "velocity": 80},
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{"pitch": 33, "start_time": 4.0, "duration": 1.5, "velocity": 80},
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{"pitch": 33, "start_time": 6.0, "duration": 1.5, "velocity": 80},
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# Bars 3-4: subdominant (iv)
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{"pitch": 38, "start_time": 8.0, "duration": 1.5, "velocity": 80},
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{"pitch": 38, "start_time": 10.0, "duration": 1.5, "velocity": 80},
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{"pitch": 38, "start_time": 12.0, "duration": 1.5, "velocity": 80},
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{"pitch": 38, "start_time": 14.0, "duration": 1.5, "velocity": 80},
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# Bars 5-6: root (i)
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{"pitch": 33, "start_time": 16.0, "duration": 1.5, "velocity": 80},
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{"pitch": 33, "start_time": 18.0, "duration": 1.5, "velocity": 80},
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{"pitch": 33, "start_time": 20.0, "duration": 1.5, "velocity": 80},
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{"pitch": 33, "start_time": 22.0, "duration": 1.5, "velocity": 80},
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# Bars 7-8: dominant (V)
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{"pitch": 40, "start_time": 24.0, "duration": 1.5, "velocity": 80},
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{"pitch": 40, "start_time": 26.0, "duration": 1.5, "velocity": 80},
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{"pitch": 40, "start_time": 28.0, "duration": 1.5, "velocity": 80},
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{"pitch": 40, "start_time": 30.0, "duration": 1.5, "velocity": 80},
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]
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# Tresillo rhythm positions in beats (within a bar)
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TRESILLO_POSITIONS = [0.0, 0.75, 1.5, 2.0, 2.75, 3.5]
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# Section structure from Ableton project
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SECTIONS = [
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("intro", 4, 0.3, False),
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("verse", 8, 0.5, True),
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("build", 4, 0.7, False),
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("chorus", 8, 1.0, True),
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("verse2", 8, 0.5, True),
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("chorus2", 8, 1.0, True),
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("bridge", 4, 0.4, False),
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("final", 8, 1.0, True),
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("outro", 4, 0.3, False),
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]
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# Clap positions in beats (within a bar)
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CLAP_POSITIONS = [1.0, 3.5]
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# Clap positions: beats 2.0 and 3.5 in each bar (reggaeton dembow)
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CLAP_POSITIONS = [2.0, 3.5]
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# i-VI-III-VII chord progression in semitones from root (minor key)
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# Chord progression i-VI-III-VII (reggaeton standard)
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CHORD_PROGRESSION = [
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(0, "minor"), # i
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(8, "major"), # VI
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@@ -71,7 +120,7 @@ CHORD_PROGRESSION = [
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(10, "major"), # VII
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]
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# FX chains per track role (before return sends)
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# FX chains per track role
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FX_CHAINS = {
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"drumloop": ["Decapitator", "Radiator"],
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"bass": ["Serum_2", "Decapitator", "Gullfoss_Master"],
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@@ -79,83 +128,67 @@ FX_CHAINS = {
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"lead": ["Serum_2", "Tremolator"],
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"clap": ["Decapitator"],
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"pad": ["Omnisphere", "ValhallaDelay"],
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"perc": ["Decapitator"],
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}
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# Send levels (reverb, delay) per track role
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SEND_LEVELS = {
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"bass": (0.05, 0.02),
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"chords": (0.15, 0.08),
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"lead": (0.10, 0.05),
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"clap": (0.05, 0.02),
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"pad": (0.25, 0.15),
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"perc": (0.05, 0.02),
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}
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# Track volume levels
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VOLUME_LEVELS = {
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"drumloop": 0.85,
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"bass": 0.82,
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"bass": 0.72,
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"chords": 0.70,
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"lead": 0.75,
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"clap": 0.80,
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"pad": 0.65,
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"perc": 0.78,
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}
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# Master volume
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MASTER_VOLUME = 0.85
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# ---------------------------------------------------------------------------
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# Phase 1: Infrastructure
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# Helpers
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# ---------------------------------------------------------------------------
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def score_drumloop(sample: dict, analysis) -> float:
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"""Score a drumloop candidate for selection quality.
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def key_to_midi_root(key_str: str, octave: int = 2) -> int:
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root = key_str.rstrip("m")
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return NOTE_TO_MIDI[root] + (octave + 1) * 12
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Formula: key_confidence*0.4 + onset_density_normalized*0.3 + duration_score*0.2 + balance_score*0.1
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Args:
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sample: sample dict from index (used for duration)
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analysis: DrumLoopAnalysis result
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def parse_key(key_str: str) -> tuple[str, bool]:
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if key_str.endswith("m"):
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return key_str[:-1], True
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return key_str, False
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Returns:
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Composite score 0.0–1.0 (higher = better)
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"""
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# key_confidence: already 0-1 from analysis
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kc = analysis.key_confidence
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# onset_density_normalized: normalize against typical max (15.0)
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transients = analysis.transients
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duration = analysis.duration
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onset_density = len(transients) / duration if duration > 0 else 0.0
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onset_density_normalized = min(1.0, onset_density / 15.0)
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def build_chord(root_midi: int, quality: str) -> list[int]:
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if quality == "minor":
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return [root_midi, root_midi + 3, root_midi + 7]
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return [root_midi, root_midi + 4, root_midi + 7]
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# duration_score: prefer >= 8 second loops for clean looping
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dur = sample.get("signal", {}).get("duration", 0.0)
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duration_score = 1.0 if dur >= 8.0 else dur / 8.0
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# balance_score: penalize if kick/snare ratio is lopsided
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kick_count = len(analysis.transients_of_type("kick"))
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snare_count = len(analysis.transients_of_type("snare"))
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total = len(transients) if transients else 1
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kick_ratio = kick_count / total
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snare_ratio = snare_count / total
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balance_score = 2.0 * min(kick_ratio, snare_ratio)
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balance_score = min(1.0, balance_score)
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def get_pentatonic(root: str, is_minor: bool, octave: int) -> list[int]:
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root_midi = key_to_midi_root(root, octave)
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intervals = [0, 3, 5, 7, 10] if is_minor else [0, 2, 4, 7, 9]
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return [root_midi + i for i in intervals]
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# format_score: prefer WAV over MP3 (lossless > lossy)
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ext = sample.get("original_path", "").rsplit(".", 1)[-1].lower()
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format_score = 1.0 if ext == "wav" else 0.85
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return kc * 0.3 + onset_density_normalized * 0.25 + duration_score * 0.15 + balance_score * 0.1 + format_score * 0.2
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def make_plugin(registry_key: str, index: int) -> PluginDef:
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if registry_key in PLUGIN_REGISTRY:
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display, path, uid = PLUGIN_REGISTRY[registry_key]
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preset = PLUGIN_PRESETS.get(registry_key)
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return PluginDef(name=registry_key, path=path, index=index, preset_data=preset)
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return PluginDef(name=registry_key, path=registry_key, index=index)
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def build_section_structure():
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"""Build section list and compute cumulative bar offsets.
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Returns:
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sections: list of SectionDef
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offsets: list of bar offsets (cumulative, in bars)
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"""
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sections = [SectionDef(name=n, bars=b, energy=e) for n, b, e, _ in SECTIONS]
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offsets = []
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off = 0.0
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@@ -165,154 +198,163 @@ def build_section_structure():
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return sections, offsets
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def root_to_midi(root: str, octave: int) -> int:
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"""Backward compat: convert note name (e.g. 'C', 'A') to MIDI number."""
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return NOTE_TO_MIDI[root] + (octave + 1) * 12
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def key_to_midi_root(key_str: str, octave: int = 2) -> int:
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"""Convert key string (e.g. "Am") to MIDI root note number.
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Args:
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key_str: Key like "Am", "Dm", "Gm", "C", "F#m"
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octave: MIDI octave (2 = bass, 3 = chords/pad)
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Returns:
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MIDI note number (e.g. 45 for A2, 57 for A3)
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"""
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root = key_str.rstrip("m")
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return NOTE_TO_MIDI[root] + (octave + 1) * 12
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# ---------------------------------------------------------------------------
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# Music theory helpers
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# Track Builders
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# ---------------------------------------------------------------------------
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def parse_key(key_str: str) -> tuple[str, bool]:
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"""Parse key string into root and minor flag."""
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if key_str.endswith("m"):
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return key_str[:-1], True
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return key_str, False
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def pick_drumloop(variant: str, index: int = 0) -> str | None:
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"""Pick a drumloop file for the given variant (seco/filtrado)."""
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files = DRUMLOOP_FILES.get(variant, [])
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if not files:
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return None
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name = files[index % len(files)]
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path = ABLETON_DRUMLOOP_DIR / name
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return str(path) if path.exists() else None
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def get_pentatonic(root: str, is_minor: bool, octave: int) -> list[int]:
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"""Get pentatonic scale pitches for root in given octave."""
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root_midi = key_to_midi_root(root, octave)
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if is_minor:
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intervals = [0, 3, 5, 7, 10] # minor pentatonic
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else:
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intervals = [0, 2, 4, 7, 9] # major pentatonic
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return [root_midi + i for i in intervals]
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def build_drumloop_track(sections, offsets, seed: int = 0) -> TrackDef:
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"""Drumloop track: different sample per section (seco/filtrado/empty cycle)."""
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rng = random.Random(seed)
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clips = []
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seco_idx = 0
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filtrado_idx = 0
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for section, sec_off in zip(sections, offsets):
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# Determine variant
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section_key = section.name
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variant = DRUMLOOP_ASSIGNMENTS.get(section_key, "seco")
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def build_chord(root_midi: int, quality: str) -> list[int]:
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"""Build a triad chord from root MIDI note and quality."""
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if quality == "minor":
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return [root_midi, root_midi + 3, root_midi + 7]
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return [root_midi, root_midi + 4, root_midi + 7]
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if variant == "empty":
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continue # no drumloop in this section
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if variant == "seco":
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path = pick_drumloop("seco", seco_idx)
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seco_idx += 1
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else:
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path = pick_drumloop("filtrado", filtrado_idx)
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filtrado_idx += 1
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# ---------------------------------------------------------------------------
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# Plugin builder
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# ---------------------------------------------------------------------------
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if path:
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clips.append(ClipDef(
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position=sec_off * 4.0,
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length=section.bars * 4.0,
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name=f"{section.name.capitalize()} Drumloop",
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audio_path=path,
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loop=True,
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))
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def make_plugin(registry_key: str, index: int) -> PluginDef:
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"""Create a PluginDef from the PLUGIN_REGISTRY."""
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if registry_key in PLUGIN_REGISTRY:
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display, path, uid = PLUGIN_REGISTRY[registry_key]
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preset = PLUGIN_PRESETS.get(registry_key)
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return PluginDef(name=registry_key, path=path, index=index, preset_data=preset)
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return PluginDef(name=registry_key, path=registry_key, index=index)
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# ---------------------------------------------------------------------------
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# Phase 2: Track Generation
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# ---------------------------------------------------------------------------
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def build_drumloop_track(drumloop_path: str, total_beats: float) -> TrackDef:
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"""Build the drumloop track — single audio clip spanning entire song, looping."""
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clips = [
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ClipDef(
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position=0.0,
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length=total_beats,
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name="Drumloop Full",
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audio_path=drumloop_path,
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loop=True,
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)
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]
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plugins = [make_plugin(fx, i) for i, fx in enumerate(FX_CHAINS.get("drumloop", []))]
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return TrackDef(
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name="Drumloop",
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volume=VOLUME_LEVELS["drumloop"],
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pan=0.0,
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color=ROLE_COLORS["drumloop"],
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clips=clips,
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plugins=plugins,
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)
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def build_bass_track(
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analysis,
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sections: list[SectionDef],
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offsets: list[float],
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key_root: str,
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key_minor: bool,
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) -> TrackDef:
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"""Build the bass track — MIDI tresillo, filtered by kick_free_zones."""
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root_midi = key_to_midi_root(key_root, 2)
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beat_dur = 60.0 / analysis.bpm
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kfz = analysis.kick_free_zones(margin_beats=0.25)
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def build_perc_track(sections, offsets, seed: int = 0) -> TrackDef:
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"""Percussion track: perc loops from Ableton library per section."""
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ableton_perc_dir = Path(
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r"C:\ProgramData\Ableton\Live 12 Suite\Resources\MIDI Remote Scripts"
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r"\libreria\reggaeton\drumloops"
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)
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# Use specific perc files from Ableton project
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perc_files = [
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"91bpm bellako percloop.wav",
|
||||
"91bpm bellako percloop.wav", # repeat for variety
|
||||
]
|
||||
# Also check SentimientoLatino perc
|
||||
sentimiento_perc = Path(
|
||||
r"C:\ProgramData\Ableton\Live 12 Suite\Resources\MIDI Remote Scripts"
|
||||
r"\libreria\reggaeton\SentimientoLatino2025\02\23 Drum Loops"
|
||||
)
|
||||
|
||||
def in_kfz(abs_beat: float) -> bool:
|
||||
"""Check if absolute beat position is in a kick-free zone."""
|
||||
s = abs_beat * beat_dur
|
||||
return any(zs <= s <= ze for zs, ze in kfz)
|
||||
clips = []
|
||||
for i, (section, sec_off) in enumerate(zip(sections, offsets)):
|
||||
# Perc in verse and chorus only, not intro/break/outro
|
||||
if section.name in ("intro", "break", "bridge", "outro"):
|
||||
continue
|
||||
|
||||
perc_name = perc_files[i % len(perc_files)]
|
||||
perc_path = ableton_perc_dir / perc_name
|
||||
|
||||
if perc_path.exists():
|
||||
clips.append(ClipDef(
|
||||
position=sec_off * 4.0,
|
||||
length=section.bars * 4.0,
|
||||
name=f"{section.name.capitalize()} Perc",
|
||||
audio_path=str(perc_path),
|
||||
loop=True,
|
||||
))
|
||||
|
||||
plugins = [make_plugin(fx, i) for i, fx in enumerate(FX_CHAINS.get("perc", []))]
|
||||
return TrackDef(
|
||||
name="Perc",
|
||||
volume=VOLUME_LEVELS["perc"],
|
||||
pan=0.12,
|
||||
clips=clips,
|
||||
plugins=plugins,
|
||||
)
|
||||
|
||||
|
||||
def build_bass_track(sections, offsets, key_root: str, key_minor: bool) -> TrackDef:
|
||||
"""808 bass using PROVEN harmonic pattern from Ableton project."""
|
||||
root_midi = key_to_midi_root(key_root, 1) # Octave 1 for 808
|
||||
|
||||
# Transpose the Ableton pattern to match the project key
|
||||
# Ableton pattern is in Am (root=33=A1), transpose to project key
|
||||
transpose = root_midi - 33 # 33 is A1 from Ableton pattern
|
||||
|
||||
clips = []
|
||||
for section, sec_off in zip(sections, offsets):
|
||||
vm = section.energy
|
||||
velocity = int(80 + 15 * vm) # 80-95 depending on energy
|
||||
|
||||
notes = []
|
||||
for bar in range(section.bars):
|
||||
for pos in TRESILLO_POSITIONS:
|
||||
abs_beat = sec_off * 4.0 + bar * 4.0 + pos
|
||||
if in_kfz(abs_beat):
|
||||
# Note: position within clip is relative to clip start (bar * 4.0)
|
||||
bars = section.bars
|
||||
|
||||
# Repeat the 8-bar pattern to fill the section
|
||||
pattern_notes = BASS_PATTERN_8BARS
|
||||
for repeat_start in range(0, bars, 8):
|
||||
bars_this_repeat = min(8, bars - repeat_start)
|
||||
for pn in pattern_notes:
|
||||
# Only include notes within this repeat's bar range
|
||||
bar_of_note = pn["start_time"] / 4.0
|
||||
if bar_of_note < bars_this_repeat:
|
||||
notes.append(MidiNote(
|
||||
pitch=root_midi,
|
||||
start=bar * 4.0 + pos,
|
||||
duration=0.5,
|
||||
velocity=int(100 * vm),
|
||||
pitch=pn["pitch"] + transpose,
|
||||
start=repeat_start * 4.0 + pn["start_time"],
|
||||
duration=pn["duration"],
|
||||
velocity=velocity,
|
||||
))
|
||||
|
||||
if notes:
|
||||
clips.append(ClipDef(
|
||||
position=sec_off * 4.0,
|
||||
length=section.bars * 4.0,
|
||||
name=f"{section.name.capitalize()} Bass",
|
||||
name=f"{section.name.capitalize()} 808",
|
||||
midi_notes=notes,
|
||||
))
|
||||
|
||||
plugins = [make_plugin(fx, i) for i, fx in enumerate(FX_CHAINS.get("bass", []))]
|
||||
return TrackDef(
|
||||
name="Bass",
|
||||
name="808 Bass",
|
||||
volume=VOLUME_LEVELS["bass"],
|
||||
pan=0.0,
|
||||
color=ROLE_COLORS["bass"],
|
||||
clips=clips,
|
||||
plugins=plugins,
|
||||
)
|
||||
|
||||
|
||||
def build_chords_track(
|
||||
analysis,
|
||||
sections: list[SectionDef],
|
||||
offsets: list[float],
|
||||
key_root: str,
|
||||
key_minor: bool,
|
||||
) -> TrackDef:
|
||||
"""Build the chords track — i-VI-III-VII on downbeats, one clip per section."""
|
||||
def build_chords_track(sections, offsets, key_root: str, key_minor: bool) -> TrackDef:
|
||||
"""Chords: i-VI-III-VII on downbeats, match key."""
|
||||
root_midi = key_to_midi_root(key_root, 3)
|
||||
clips = []
|
||||
for section, sec_off in zip(sections, offsets):
|
||||
if section.name in ("intro", "break", "outro"):
|
||||
continue # no chords in sparse sections
|
||||
|
||||
vm = section.energy
|
||||
notes = []
|
||||
for bar in range(section.bars):
|
||||
@@ -323,7 +365,7 @@ def build_chords_track(
|
||||
pitch=pitch,
|
||||
start=bar * 4.0,
|
||||
duration=4.0,
|
||||
velocity=int(80 * vm),
|
||||
velocity=int(75 * vm),
|
||||
))
|
||||
if notes:
|
||||
clips.append(ClipDef(
|
||||
@@ -338,60 +380,38 @@ def build_chords_track(
|
||||
name="Chords",
|
||||
volume=VOLUME_LEVELS["chords"],
|
||||
pan=0.0,
|
||||
color=ROLE_COLORS["chords"],
|
||||
clips=clips,
|
||||
plugins=plugins,
|
||||
)
|
||||
|
||||
|
||||
def build_lead_track(
|
||||
analysis,
|
||||
sections: list[SectionDef],
|
||||
offsets: list[float],
|
||||
key_root: str,
|
||||
key_minor: bool,
|
||||
seed: int = 42,
|
||||
) -> TrackDef:
|
||||
"""Build the lead track — pentatonic melody, avoid transients, chord tones on strong beats."""
|
||||
penta_low = get_pentatonic(key_root, key_minor, 4)
|
||||
penta_high = get_pentatonic(key_root, key_minor, 5)
|
||||
penta = penta_low + penta_high
|
||||
|
||||
transient_times = [t.time for t in analysis.transients]
|
||||
beat_dur = 60.0 / analysis.bpm
|
||||
|
||||
def near_transient(beat: float, margin_beats: float = 0.2) -> bool:
|
||||
"""Return True if beat position is near a transient."""
|
||||
s = beat * beat_dur
|
||||
return any(abs(s - tt) < margin_beats * beat_dur for tt in transient_times)
|
||||
|
||||
def build_lead_track(sections, offsets, key_root: str, key_minor: bool, seed: int = 0) -> TrackDef:
|
||||
"""Lead melody: pentatonic, sparse, chord tones on strong beats."""
|
||||
penta = get_pentatonic(key_root, key_minor, 4) + get_pentatonic(key_root, key_minor, 5)
|
||||
rng = random.Random(seed)
|
||||
clips = []
|
||||
for section, sec_off in zip(sections, offsets):
|
||||
vm = section.energy
|
||||
# Density by section name
|
||||
density_map = {"chorus": 0.6, "verse": 0.35, "build": 0.35, "intro": 0.2, "break": 0.2, "outro": 0.15}
|
||||
density = density_map.get(section.name, 0.3)
|
||||
|
||||
for section, sec_off in zip(sections, offsets):
|
||||
# Lead only in chorus and final sections
|
||||
if section.name not in ("chorus", "chorus2", "final"):
|
||||
continue
|
||||
|
||||
vm = section.energy
|
||||
density = 0.4
|
||||
notes = []
|
||||
|
||||
for bar in range(section.bars):
|
||||
for sixteenth in range(16):
|
||||
bp = bar * 4.0 + sixteenth * 0.25
|
||||
abs_bp = sec_off * 4.0 + bp
|
||||
|
||||
if rng.random() > density:
|
||||
continue
|
||||
if near_transient(abs_bp, margin_beats=0.2):
|
||||
continue
|
||||
|
||||
strong = sixteenth in (0, 8) # beat 0 and beat 2 of bar
|
||||
# On strong beats: emphasize chord tones (1st, 3rd, 5th of pentatonic)
|
||||
strong = sixteenth in (0, 4, 8, 12) # quarter note positions
|
||||
pool = [penta[0], penta[2], penta[4]] if strong else penta
|
||||
notes.append(MidiNote(
|
||||
pitch=rng.choice(pool),
|
||||
start=bp,
|
||||
duration=0.5 if strong else 0.25,
|
||||
velocity=int((90 if strong else 70) * vm),
|
||||
velocity=int((85 if strong else 65) * vm),
|
||||
))
|
||||
|
||||
if notes:
|
||||
@@ -407,26 +427,20 @@ def build_lead_track(
|
||||
name="Lead",
|
||||
volume=VOLUME_LEVELS["lead"],
|
||||
pan=0.0,
|
||||
color=ROLE_COLORS["lead"],
|
||||
clips=clips,
|
||||
plugins=plugins,
|
||||
)
|
||||
|
||||
|
||||
def build_clap_track(
|
||||
selector: SampleSelector,
|
||||
sections: list[SectionDef],
|
||||
offsets: list[float],
|
||||
) -> TrackDef:
|
||||
"""Build the clap track — audio snare samples at beats 1.0 and 3.5 ONLY in chorus/verse."""
|
||||
# Get clap (snare) samples — select best one
|
||||
snare_results = selector.select(role="snare", limit=5)
|
||||
def build_clap_track(selector: SampleSelector, sections, offsets) -> TrackDef:
|
||||
"""Clap: snare samples on beats 2.0 and 3.5, ONLY in chorus/verse sections."""
|
||||
snare_results = selector.select(role="snare", limit=3)
|
||||
clap_path = snare_results[0].sample["original_path"] if snare_results else None
|
||||
|
||||
clips = []
|
||||
if clap_path:
|
||||
for section, sec_off in zip(sections, offsets):
|
||||
if section.name not in ("chorus", "verse"):
|
||||
if not section.name.startswith(("chorus", "verse", "final")):
|
||||
continue
|
||||
for bar in range(section.bars):
|
||||
for cb in CLAP_POSITIONS:
|
||||
@@ -442,28 +456,26 @@ def build_clap_track(
|
||||
name="Clap",
|
||||
volume=VOLUME_LEVELS["clap"],
|
||||
pan=0.0,
|
||||
color=ROLE_COLORS["clap"],
|
||||
clips=clips,
|
||||
plugins=plugins,
|
||||
)
|
||||
|
||||
|
||||
def build_pad_track(
|
||||
sections: list[SectionDef],
|
||||
offsets: list[float],
|
||||
key_root: str,
|
||||
key_minor: bool,
|
||||
) -> TrackDef:
|
||||
"""Build the pad track — sustained root chord, one clip per section."""
|
||||
def build_pad_track(sections, offsets, key_root: str, key_minor: bool) -> TrackDef:
|
||||
"""Pad: sustained root chord, only in chorus/build sections."""
|
||||
root_midi = key_to_midi_root(key_root, 3)
|
||||
quality = "minor" if key_minor else "major"
|
||||
chord = build_chord(root_midi, quality)
|
||||
|
||||
clips = []
|
||||
for section, sec_off in zip(sections, offsets):
|
||||
# Pad in build, chorus, bridge, final only
|
||||
if section.name not in ("build", "chorus", "chorus2", "bridge", "final"):
|
||||
continue
|
||||
|
||||
vm = section.energy
|
||||
notes = [
|
||||
MidiNote(pitch=p, start=0.0, duration=section.bars * 4.0, velocity=int(60 * vm))
|
||||
MidiNote(pitch=p, start=0.0, duration=section.bars * 4.0, velocity=int(55 * vm))
|
||||
for p in chord
|
||||
]
|
||||
clips.append(ClipDef(
|
||||
@@ -478,18 +490,12 @@ def build_pad_track(
|
||||
name="Pad",
|
||||
volume=VOLUME_LEVELS["pad"],
|
||||
pan=0.0,
|
||||
color=ROLE_COLORS["pad"],
|
||||
clips=clips,
|
||||
plugins=plugins,
|
||||
)
|
||||
|
||||
|
||||
# ---------------------------------------------------------------------------
|
||||
# Phase 3: Mixing — Return tracks and sends
|
||||
# ---------------------------------------------------------------------------
|
||||
|
||||
def create_return_tracks() -> list[TrackDef]:
|
||||
"""Create Reverb and Delay return tracks."""
|
||||
return [
|
||||
TrackDef(
|
||||
name="Reverb",
|
||||
@@ -514,11 +520,11 @@ def create_return_tracks() -> list[TrackDef]:
|
||||
|
||||
def main() -> None:
|
||||
parser = argparse.ArgumentParser(
|
||||
description="Compose a REAPER .rpp project from drumloop analysis — instrumental only."
|
||||
description="Compose a REAPER .rpp reggaeton — based on proven Ableton arrangement."
|
||||
)
|
||||
parser.add_argument("--bpm", type=float, default=None, help="BPM override")
|
||||
parser.add_argument("--key", default=None, help="Key override (e.g. Am)")
|
||||
parser.add_argument("--output", default="output/drumloop_v2.rpp", help="Output path")
|
||||
parser.add_argument("--bpm", type=float, default=99, help="BPM (default: 99)")
|
||||
parser.add_argument("--key", default="Am", help="Key (default: Am)")
|
||||
parser.add_argument("--output", default="output/song.rpp", help="Output path")
|
||||
parser.add_argument("--seed", type=int, default=None, help="Random seed")
|
||||
args = parser.parse_args()
|
||||
|
||||
@@ -528,69 +534,31 @@ def main() -> None:
|
||||
output_path = Path(args.output)
|
||||
output_path.parent.mkdir(parents=True, exist_ok=True)
|
||||
|
||||
# ===== Step 1: Select BEST drumloop (scored, not random) =====
|
||||
index_path = _ROOT / "data" / "sample_index.json"
|
||||
if not index_path.exists():
|
||||
print(f"ERROR: sample index not found at {index_path}", file=sys.stderr)
|
||||
sys.exit(1)
|
||||
bpm = args.bpm
|
||||
if bpm <= 0:
|
||||
raise ValueError(f"bpm must be > 0, got {bpm}")
|
||||
key = args.key
|
||||
key_root, key_minor = parse_key(key)
|
||||
|
||||
print(f"Project: {bpm} BPM, Key: {key}")
|
||||
|
||||
# Load sample selector for clap/snare
|
||||
index_path = _ROOT / "data" / "sample_index.json"
|
||||
selector = SampleSelector(str(index_path))
|
||||
selector._load()
|
||||
|
||||
# Filter drumloops in reggaeton tempo range (85-105 BPM)
|
||||
candidates = [
|
||||
s for s in selector._samples
|
||||
if s["role"] == "drumloop" and 85 <= s["perceptual"]["tempo"] <= 105
|
||||
]
|
||||
if not candidates:
|
||||
# Fallback: wider range
|
||||
candidates = [
|
||||
s for s in selector._samples
|
||||
if s["role"] == "drumloop" and 80 <= s["perceptual"]["tempo"] <= 120
|
||||
]
|
||||
if not candidates:
|
||||
print("ERROR: No suitable drumloops found", file=sys.stderr)
|
||||
sys.exit(1)
|
||||
|
||||
# Score each candidate and pick the best
|
||||
scored_candidates = []
|
||||
for c in candidates:
|
||||
analysis = DrumLoopAnalyzer(c["original_path"]).analyze()
|
||||
c["_score"] = score_drumloop(c, analysis)
|
||||
c["_analysis"] = analysis
|
||||
scored_candidates.append(c)
|
||||
|
||||
best = max(scored_candidates, key=lambda x: x["_score"])
|
||||
drumloop_path = best["original_path"]
|
||||
analysis = best["_analysis"]
|
||||
|
||||
print(f"Selected drumloop: {best.get('original_name', drumloop_path)}")
|
||||
print(f" Score: {best['_score']:.3f}")
|
||||
print(f" BPM: {best['perceptual']['tempo']:.1f}, Key: {best['musical']['key']}")
|
||||
print(f" Transients: {len(analysis.transients)} "
|
||||
f"(kicks={len(analysis.transients_of_type('kick'))}, "
|
||||
f"snares={len(analysis.transients_of_type('snare'))})")
|
||||
|
||||
# ===== Step 2: Project parameters (overrides win) =====
|
||||
bpm = args.bpm if args.bpm is not None else analysis.bpm
|
||||
key = args.key if args.key is not None else (analysis.key or "Am")
|
||||
if bpm <= 0:
|
||||
raise ValueError(f"bpm must be > 0, got {bpm}")
|
||||
key_root, key_minor = parse_key(key)
|
||||
|
||||
print(f"\nProject: {bpm:.1f} BPM, Key: {key}")
|
||||
|
||||
# ===== Step 3: Build section structure =====
|
||||
# Build sections
|
||||
sections, offsets = build_section_structure()
|
||||
|
||||
# ===== Step 4: Build all tracks =====
|
||||
total_beats = sum(s.bars for s in sections) * 4.0
|
||||
print(f"Sections: {len(sections)}, Total: {int(total_beats/4)} bars ({total_beats} beats)")
|
||||
|
||||
# Build tracks
|
||||
tracks = [
|
||||
build_drumloop_track(drumloop_path, total_beats),
|
||||
build_bass_track(analysis, sections, offsets, key_root, key_minor),
|
||||
build_chords_track(analysis, sections, offsets, key_root, key_minor),
|
||||
build_lead_track(analysis, sections, offsets, key_root, key_minor, seed=args.seed or 42),
|
||||
build_drumloop_track(sections, offsets, seed=args.seed or 0),
|
||||
build_perc_track(sections, offsets, seed=args.seed or 0),
|
||||
build_bass_track(sections, offsets, key_root, key_minor),
|
||||
build_chords_track(sections, offsets, key_root, key_minor),
|
||||
build_lead_track(sections, offsets, key_root, key_minor, seed=args.seed or 42),
|
||||
build_clap_track(selector, sections, offsets),
|
||||
build_pad_track(sections, offsets, key_root, key_minor),
|
||||
]
|
||||
@@ -598,18 +566,18 @@ def main() -> None:
|
||||
return_tracks = create_return_tracks()
|
||||
all_tracks = tracks + return_tracks
|
||||
|
||||
# ===== Step 5: Wire sends =====
|
||||
reverb_idx = len(tracks) # first return track
|
||||
delay_idx = len(tracks) + 1 # second return track
|
||||
# Wire sends
|
||||
reverb_idx = len(tracks)
|
||||
delay_idx = len(tracks) + 1
|
||||
for track in all_tracks:
|
||||
if track.name in ("Reverb", "Delay"):
|
||||
continue
|
||||
role = track.name.lower()
|
||||
role = track.name.lower().replace(" ", "_")
|
||||
sends = SEND_LEVELS.get(role, (0.0, 0.0))
|
||||
track.send_level = {reverb_idx: sends[0], delay_idx: sends[1]}
|
||||
|
||||
# ===== Step 6: Assemble SongDefinition =====
|
||||
meta = SongMeta(bpm=bpm, key=key, title="Reggaeton Drumloop Instrumental")
|
||||
# Assemble
|
||||
meta = SongMeta(bpm=bpm, key=key, title="Reggaeton Instrumental")
|
||||
song = SongDefinition(
|
||||
meta=meta,
|
||||
tracks=all_tracks,
|
||||
@@ -620,10 +588,9 @@ def main() -> None:
|
||||
errors = song.validate()
|
||||
if errors:
|
||||
print("WARNING: validation errors:", file=sys.stderr)
|
||||
for e in errors:
|
||||
for e in errors[:10]:
|
||||
print(f" - {e}", file=sys.stderr)
|
||||
|
||||
# ===== Step 7: Write RPP =====
|
||||
builder = RPPBuilder(song, seed=args.seed)
|
||||
builder.write(str(output_path))
|
||||
print(f"\nWritten: {output_path.resolve()}")
|
||||
@@ -635,20 +602,11 @@ EFFECT_ALIASES: dict = {}
|
||||
def build_section_tracks(*args, **kwargs):
|
||||
return [], []
|
||||
|
||||
|
||||
def build_fx_chain(*args, **kwargs):
|
||||
return []
|
||||
|
||||
|
||||
def build_sampler_plugin(*args, **kwargs):
|
||||
return None
|
||||
|
||||
|
||||
# Alias for renamed function
|
||||
def build_melody_track(*args, **kwargs):
|
||||
"""Backward compat alias — use build_lead_track instead."""
|
||||
return build_lead_track(*args, **kwargs)
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
def build_melody_track(sections, offsets, key_root, key_minor, seed=0):
|
||||
return build_lead_track(sections, offsets, key_root, key_minor, seed=seed)
|
||||
|
||||
63
scripts/generate.py
Normal file
63
scripts/generate.py
Normal file
@@ -0,0 +1,63 @@
|
||||
"""REAPER .rpp song generator — thin CLI wrapper around compose.main().
|
||||
|
||||
Usage:
|
||||
python scripts/generate.py --bpm 95 --key Am --output output/song.rpp --seed 42
|
||||
"""
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
import argparse
|
||||
import sys
|
||||
from pathlib import Path
|
||||
|
||||
_ROOT = Path(__file__).parent.parent
|
||||
sys.path.insert(0, str(_ROOT))
|
||||
import compose
|
||||
|
||||
|
||||
def main() -> None:
|
||||
parser = argparse.ArgumentParser(description="Generate a REAPER .rpp reggaeton song.")
|
||||
parser.add_argument("--bpm", type=float, default=95, help="BPM (default: 95)")
|
||||
parser.add_argument("--key", default="Am", help="Musical key (default: Am)")
|
||||
parser.add_argument(
|
||||
"--output", default="output/song.rpp", help="Output .rpp path (default: output/song.rpp)"
|
||||
)
|
||||
parser.add_argument("--seed", type=int, default=42, help="Random seed (default: 42)")
|
||||
parser.add_argument(
|
||||
"--validate", action="store_true", help="Run validator after generation"
|
||||
)
|
||||
args = parser.parse_args()
|
||||
|
||||
# BPM validation
|
||||
if args.bpm <= 0:
|
||||
raise ValueError("bpm must be > 0")
|
||||
|
||||
# Ensure output directory exists
|
||||
output_path = Path(args.output)
|
||||
output_path.parent.mkdir(parents=True, exist_ok=True)
|
||||
|
||||
# Delegate to compose.main() — set sys.argv so compose's argparse works
|
||||
sys.argv = [
|
||||
sys.argv[0],
|
||||
"--bpm", str(args.bpm),
|
||||
"--key", args.key,
|
||||
"--output", str(output_path),
|
||||
"--seed", str(args.seed),
|
||||
]
|
||||
compose.main()
|
||||
|
||||
# Post-generation validation
|
||||
if args.validate:
|
||||
from src.validator.rpp_validator import validate_rpp_output
|
||||
|
||||
errors = validate_rpp_output(str(output_path), expected_bpm=args.bpm, expected_bars=52)
|
||||
if errors:
|
||||
print("Validation errors:", file=sys.stderr)
|
||||
for err in errors:
|
||||
print(f" - {err}", file=sys.stderr)
|
||||
sys.exit(1)
|
||||
print("Validation passed.", file=sys.stderr)
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
145
scripts/run_in_reaper.py
Normal file
145
scripts/run_in_reaper.py
Normal file
@@ -0,0 +1,145 @@
|
||||
"""CLI to run Phase 2 ReaScript refinement on a .rpp file.
|
||||
|
||||
Usage: python scripts/run_in_reaper.py <rpp_path> [--output <wav_path>] [--timeout <seconds>]
|
||||
"""
|
||||
|
||||
from __future__ import annotations
|
||||
|
||||
import argparse
|
||||
import json
|
||||
import sys
|
||||
import time
|
||||
from pathlib import Path
|
||||
|
||||
sys.path.insert(0, str(Path(__file__).parents[1]))
|
||||
|
||||
from src.reaper_scripting import ReaScriptGenerator
|
||||
from src.reaper_scripting.commands import (
|
||||
ReaScriptCommand,
|
||||
ReaScriptResult,
|
||||
read_result,
|
||||
write_command,
|
||||
)
|
||||
|
||||
|
||||
def main():
|
||||
parser = argparse.ArgumentParser(
|
||||
description="Run Phase 2 ReaScript refinement on a .rpp file"
|
||||
)
|
||||
parser.add_argument("rpp_path", help="Path to .rpp file")
|
||||
parser.add_argument(
|
||||
"--output", "-o", help="Path for rendered WAV output", default=None
|
||||
)
|
||||
parser.add_argument(
|
||||
"--timeout",
|
||||
type=int,
|
||||
default=120,
|
||||
help="Timeout in seconds for polling result (default: 120)",
|
||||
)
|
||||
args = parser.parse_args()
|
||||
|
||||
rpp_path = Path(args.rpp_path)
|
||||
if not rpp_path.exists():
|
||||
print(f"ERROR: .rpp file not found: {rpp_path}", file=sys.stderr)
|
||||
sys.exit(1)
|
||||
|
||||
# Resolve render_path: default to .rpp folder with _rendered.wav
|
||||
if args.output:
|
||||
render_path = Path(args.output)
|
||||
else:
|
||||
render_path = rpp_path.parent / f"{rpp_path.stem}_rendered.wav"
|
||||
|
||||
# 1. Build command
|
||||
command = ReaScriptCommand(
|
||||
version=1,
|
||||
action="calibrate",
|
||||
rpp_path=str(rpp_path.resolve()),
|
||||
render_path=str(render_path.resolve()),
|
||||
timeout=args.timeout,
|
||||
track_calibration=[],
|
||||
)
|
||||
|
||||
# 2. Generate ReaScript
|
||||
generator = ReaScriptGenerator()
|
||||
# Write to a fixed path - in real usage this would be REAPER ResourcePath()/scripts/
|
||||
reaper_scripts_dir = Path(sys.path[1]) / "scripts" if len(sys.path) > 1 else Path("scripts")
|
||||
script_path = reaper_scripts_dir / "fl_control_phase2.py"
|
||||
generator.generate(script_path, command)
|
||||
print(f"Generated ReaScript: {script_path}")
|
||||
|
||||
# 3. Write command JSON (same directory as script)
|
||||
cmd_json_path = reaper_scripts_dir / "fl_control_command.json"
|
||||
write_command(cmd_json_path, command)
|
||||
print(f"Wrote command JSON: {cmd_json_path}")
|
||||
|
||||
# 4. Poll for result JSON
|
||||
res_json_path = reaper_scripts_dir / "fl_control_result.json"
|
||||
timeout = args.timeout
|
||||
poll_interval = 2.0
|
||||
elapsed = 0.0
|
||||
|
||||
print(f"Polling for result at {res_json_path} (timeout={timeout}s)...")
|
||||
while elapsed < timeout:
|
||||
if res_json_path.exists():
|
||||
break
|
||||
time.sleep(poll_interval)
|
||||
elapsed += poll_interval
|
||||
|
||||
if not res_json_path.exists():
|
||||
print("TIMEOUT: result JSON not found within timeout", file=sys.stderr)
|
||||
sys.exit(2)
|
||||
|
||||
# 5. Read and print results
|
||||
try:
|
||||
result = read_result(res_json_path)
|
||||
except Exception as e:
|
||||
print(f"ERROR: failed to read result: {e}", file=sys.stderr)
|
||||
sys.exit(1)
|
||||
|
||||
if result.status == "error":
|
||||
print(f"REAPER error: {result.message}", file=sys.stderr)
|
||||
sys.exit(1)
|
||||
|
||||
# Print LUFS metrics
|
||||
print("\n=== Phase 2 Result ===")
|
||||
print(f"Status: {result.status}")
|
||||
if result.lufs is not None:
|
||||
print(f"LUFS: {result.lufs}")
|
||||
if result.integrated_lufs is not None:
|
||||
print(f"Integrated LUFS: {result.integrated_lufs}")
|
||||
if result.short_term_lufs is not None:
|
||||
print(f"Short-term LUFS: {result.short_term_lufs}")
|
||||
print(f"Tracks verified: {result.tracks_verified}")
|
||||
if result.fx_errors:
|
||||
print(f"FX errors: {json.dumps(result.fx_errors, indent=2)}")
|
||||
print(f"Message: {result.message}")
|
||||
|
||||
# 6. Write output files
|
||||
output_dir = rpp_path.parent / "output"
|
||||
output_dir.mkdir(exist_ok=True)
|
||||
|
||||
# LUFS metrics
|
||||
lufs_data = {
|
||||
"lufs": result.lufs,
|
||||
"integrated_lufs": result.integrated_lufs,
|
||||
"short_term_lufs": result.short_term_lufs,
|
||||
"render_path": str(render_path.resolve()),
|
||||
}
|
||||
lufs_path = output_dir / f"{rpp_path.stem}_lufs.json"
|
||||
with open(lufs_path, "w", encoding="utf-8") as f:
|
||||
json.dump(lufs_data, f, indent=2)
|
||||
print(f"Wrote LUFS data: {lufs_path}")
|
||||
|
||||
# FX errors
|
||||
if result.fx_errors:
|
||||
fx_path = output_dir / f"{rpp_path.stem}_fx_errors.json"
|
||||
with open(fx_path, "w", encoding="utf-8") as f:
|
||||
json.dump(result.fx_errors, f, indent=2)
|
||||
print(f"Wrote FX errors: {fx_path}")
|
||||
|
||||
print("\nPhase 2 complete.")
|
||||
sys.exit(0)
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
Reference in New Issue
Block a user