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Administrator 3f3866f32e 🎉 Sprint 7 COMPLETADO - MIDI instruments funcionando, clear_project agregado, drum loop + harmony test exitoso

AVANCES CLAVE:
✅ B001 FIX: MIDI instruments cargan correctamente (Wavetable/Operator)
✅ API fix: app.view.selected_track → self._song.view.selected_track
✅ clear_project: Nuevo comando para limpiar Session + Arrangement View
✅ Drum loop + Harmony: 100bpm gata con progresión Am-F-C-G funcionando
✅ 13 scenes production: Sistema completo operativo

Estado: MUY FELIZ, todo funciona perfectamente 🚀

2026-04-13 13:56:19 -03:00

3.2 KiB

Raw Blame History

Sprint 6: Professional Session View Production

Goal

Transform _cmd_build_song from basic sample rotation into a professional Session View production system. All work is Session View only — the user records to Arrangement View manually with F9.

Current State (Sprint 5)

11 tracks (7 audio + 4 MIDI)
5 scenes (Intro, Verse, Chorus, Bridge, Outro)
Simple modulo sample rotation (2 samples per category)
No velocity/energy variation across scenes
No transition fills between sections
No pad/texture layers
Fragile Session→Arrangement recording

Sprint 6 Changes

Module 1: Expanded Track Layout (14 tracks)

Audio (9):

Drum Loop - Full groove loop
Kick - One-shot
Snare/Clap - One-shot
HiHat - One-shot
Shaker/Perc - Additional percussive layer
Perc Loop - Percussion loop
Bass Audio - Bass sample loop
FX - Risers, impacts, transitions
Ambience - Atmospheric textures

MIDI (5): 10. Dembow - Wavetable (4 variations per scene) 11. Chords - Wavetable (8 different progressions) 12. Lead - Operator (density varies by energy) 13. Sub Bass - Operator (4 styles per scene) 14. Pad/Texture - Wavetable (sustained chords)

Module 2: 8 Scenes with Energy Profiles

Scene	Name	Bars	Energy	Elements
0	Intro	4	0.30	pad + ambience + hi-hats
1	Verse A	8	0.60	drums + bass + chords + dembow
2	Verse B	8	0.65	all verse + lead melody
3	Pre-Chorus	4	0.75	build + riser FX + pad
4	Chorus A	8	0.95	full energy, all elements + impact
5	Chorus B	8	0.90	chorus variation, different patterns
6	Bridge	4	0.40	breakdown, bass + pad + ambience
7	Outro	4	0.20	pad + ambience fade

Module 3: Per-Scene Sample Swapping

_pick_for_scene(): distributes ALL available samples across 8 scenes
Each scene gets a different sample from each category
Energy-based: softer samples for intro/bridge, punchy for chorus

Module 4: Energy-Based Velocity

_velocity_range(energy): maps 0.0-1.0 to MIDI velocity ranges
Intro: vel 70-80, Verse: 85-100, Chorus: 95-127, Bridge: 60-80, Outro: 50-70
Applied to all MIDI pattern generation

Module 5: Better MIDI Patterns

Dembow: 4 variations (minimal, standard, double, triple) mapped to scene energy
Chords: 8 different progressions across scenes
Bass: 4 styles (sub, standard, staccato, slide/melodic)
Lead: density scales with energy (0.5-0.8)
Pad: sustained triads with whole-note durations

Module 6: Humanization

Applied to all 5 MIDI tracks after generation
Instrument-specific profiles (kick=5ms, snare=10ms, hats=15ms)
BPM-aware timing conversion

Module 7: Transition FX

Pre-Chorus scene gets FX clip (riser)
Chorus A scene gets FX clip (impact)
Bridge scene gets ambience clip (downlifter feel)

Removed

_start_translate_to_arrangement call (user does F9 manually)
_translate_tick still exists but not triggered by build_song

Files Modified

__init__.py: _cmd_build_song rewritten (lines 5342-5705)

Testing

Health check (5/5)
Run build_song
Verify 14 tracks created
Verify 8 scenes with clips
Fire each scene and listen
Press F9 to record to Arrangement

3.2 KiB Raw Blame History