- Reverse-engineer drum patterns from 2 real reggaeton tracks with librosa
- Create patterns.py with extracted frequency data (kick/snare/hihat positions)
- Rewrite rhythm.py with pattern-bank generators (dembow, dense, trapico, offbeat)
- Rewrite melodic.py with section-aware generators and humanization
- Add weighted random sample selection in SampleSelector (top-5 pool)
- Add generate_structure() with randomized templates and energy variance
- Fix RPP structure: TEMPO arity (3→4 args), string quoting for empty strings
- Rewrite quick_drumloop_test.py with correct REAPER ground truth format
- Add scripts/analyze_examples.py for reverse engineering audio tracks
- Add --seed argument for reproducible generation
- 72 tests passing
- Fix compose.py to select different samples per section instead of one per role
- Add select_many() to SampleSelector for diverse sample selection
- Migrate 862 samples from scattered dirs to libreria/samples/{role}/
- Rename files with consistent convention: {role}_{key}_{bpm}_{character}_{hash}.wav
- Add migrate_library.py script with dry-run and verification
- Backup original index as sample_index_pre_migration.json
- 72 tests passing
