Developer(s) Gustavo Díaz-Jerez
Stable release 2000 (3.0)
Operating system Windows
Type algorithmic music and composition
License freeware

FractMus is a freeware algorithmic music generator program developed and maintained by Spanish pianist and composer Gustavo Díaz-Jerez. It has been primarily used by composers, performers, software designers, researchers and artists for creating music.


FractMus employs twelve algorithms for pitch-generation drawn from number theory (Thue–Morse sequence, Collatz Conjecture (Hailstone numbers), Earthwork sequence), chaotic dynamics (Logistic map, Lorenz attractor, Hénon map, Hopalong attractor, Gingerbreadman map, Martin attractor), cellular automata (Wolfram 1D CA), noise (1/f noise), and randomness. It offers a set of tools to assist the compositional process. These include a data randomizer and a composition "wizard", among others. Compositions (data sets) can be saved to a standard MIDI file for later refinement in a sequencer program or music editor.

See also

External links

  • FractMus Homepage
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