014e636889
- section-energy: track activity matrix + volume/velocity multipliers per section - smart-chords: ChordEngine with voice leading, inversions, 4 emotion modes - hook-melody: melody engine with hook/stabs/smooth styles, call-and-response - mix-calibration: Calibrator module (LUFS volumes, HPF/LPF, stereo, sends, master) - transitions-fx: FX track with risers/impacts/sweeps at section boundaries - sidechain: MIDI CC11 bass ducking on kick hits via DrumLoopAnalyzer - presets-pack: role-aware plugin presets (Serum/Decapitator/Omnisphere per role) Full SDD pipeline (propose→spec→design→tasks→apply→verify) for all 7 changes. 302/302 tests passing.
2.0 KiB
2.0 KiB
Tasks: Hook-Based Reggaeton Melody
Phase 1: Melody Engine Core
- 1.1 Create
src/composer/melody_engine.pywithbuild_motif(key_root, key_minor, style, bars, seed)→list[MidiNote] - 1.2 Implement "hook" style: arch contour, chord tones on strong beats, 4–8 notes
- 1.3 Implement "stabs" style: 16th-duration hits on dembow positions [1.0, 2.5, 3.0, 3.5] per bar
- 1.4 Implement "smooth" style: stepwise scalar eighth-note motion
- 1.5 Implement
apply_variation(motif, shift_beats, transpose_semitones)→list[MidiNote] - 1.6 Implement
build_call_response(motif, bars, key_root, key_minor, seed)→list[MidiNote] - 1.7 Wire internal helpers:
_resolve_chord_tones(),_resolve_tension_notes()
Phase 2: Integration
- 2.1 Modify
build_lead_track()inscripts/compose.pyto delegate tomelody_engine.build_call_response() - 2.2 Pass seed through to melody engine calls
- 2.3 Keep
get_pentatonic()andCHORD_PROGRESSIONunchanged in compose.py
Phase 3: Testing
- 3.1 Create
tests/test_melody_engine.pywithtest_motif_deterministic(same seed = same output) - 3.2 Test
test_motif_different_seeds_different_output - 3.3 Test
test_invalid_style_raises_value_error - 3.4 Test
test_hook_chord_tones_on_strong_beats(≥70% ratio) - 3.5 Test
test_stabs_grid_alignment(all notes on dembow positions) - 3.6 Test
test_smooth_stepwise_motion(consecutive ≤2 semitones) - 3.7 Test
test_variation_preserves_note_count_structure - 3.8 Test
test_call_ends_on_tension_response_ends_on_tonic(V/VII → i) - 3.9 Test
test_call_response_fills_bars(motif repeats to fill section) - 3.10 Update
test_melody_uses_pentatonicintests/test_compose_integration.pyfor hook structure
Phase 4: Validation
- 4.1 Run full test suite:
pytest tests/ -x— 247/248 pass (1 pre-existing failure, unrelated) - 4.2 Manual verification: generate .rpp with
--seed 42, confirm lead clips contain repeating motif structure