FractMus

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.
Overview
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.
 
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