Pitch-Class Swap Map

Enforce one-to-one mapping (permutation)

Reset to Identity Random Permutation

Tip: Use a permutation for coherent "relabeling," or turn permutation OFF for many-to-one swaps.

Post-Swap Transformations

Applied after the swap map, in order: Swap → Invert → Transpose → Retrograde.

Invert  12 − x mod 12

Transpose by semitones  + n mod 12

Retrograde  reverse pulse order

Download Output

↓ Download CSV ↓ Download MusicXML

MusicXML: one staff per layer, treble clef, 4/4 — one measure per pulse, notes in octave 4, ascending, always sharps.

Preview — first 12 rows

Updates live as you edit. Downloads export the full dataset.