Isorhythm Generator

Compose medieval & modern isorhythmic patterns from color and talea sequences

Color (pitch sequence)

MIDI numbers Pitch classes (hex)

Enter MIDI note numbers (0–127), comma- or space-separated.

Register (octave for MusicXML export)

e.g. 4 = middle octave (C4 = middle C)

All pitch classes will be placed in this octave for MusicXML output. Affects export only — not the pattern table.

Talea (duration sequence)

Integers = 16th-note multiples (1=♬, 2=♫, 4=♩, 8=𝅗). Prefix with R for rests (e.g. R4 = quarter rest). Separate by spaces or commas.

Output length

Full LCM cycle Custom

Number of talea cycles

Generate Pattern Download MusicXML Clear

Pattern statistics

#	Pitch / Rest	MIDI	Note name	Pitch class	Duration	Dur. name	Color cycle	Talea cycle

MusicXML export

Color and talea cycle independently; the pattern completes when both reset simultaneously (LCM). Rests use R-prefix notation (e.g. R4 = quarter rest). Pitch classes shown in hex (0–B).