mwinter/compact_sets
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5 commits

Author SHA1 Message Date
Michael Winter d4cdd86e85 Add voice-leading preservation with index-to-index movement mapping 
- Change movement map from {pitch: {destination, cents}} to {src_idx: dest_idx}
- Track voice mapping cumulatively in pathfinder
- Reorder output pitches according to voice mapping
- Update weight calculation to compute cent_diffs from index mapping
- Melodic threshold now correctly filters edges based on actual movements
 2026-03-12 19:14:33 +01:00
Michael Winter 2b422d55fe Fix output to preserve internal tuple order 
- Remove sorted_by_frequency from write functions
- Output now uses internal chord._pitches order instead of sorted
 2026-03-12 18:18:40 +01:00
Michael Winter ccf90d19e1 Fix movement tracking and add melodic threshold weights 
- Add movement tracking to edges: {source: {destination, cent_difference}}
- Fix movement map to handle multiple changing pitches with permutations
- Remove melodic threshold from graph building (apply in weight calculation)
- Add melodic_threshold_min/max to weight config
- Add CLI args --melodic-min and --melodic-max
 2026-03-12 17:44:54 +01:00
Michael Winter aeb1fd9982 Fix path finding to use cumulative transpositions 
- Track cumulative transposition across steps so output = destination + (T1 + T2 + ... + TN)
- Fix symdiff calculation to use expanded (transposed) pitches instead of collapsed
- Update CLI from --change to --symdiff-min/symdiff-max
 2026-03-12 16:59:44 +01:00
Michael Winter f2bcd37287 Add elegant OOP implementation with CLI 
- New compact_sets.py with Pitch, Chord, HarmonicSpace classes
- Voice leading graph with change parameter (instead of symdiff)
- CLI: --change, --dims, --chord-size, --max-path, --seed
- Tests for core functionality
- .gitignore for Python/pytest
 2026-03-10 16:13:41 +01:00