RobertBendun / markov-music

Generating music using Markov Chains

Markov Chain Music

Repository related to topic in title on 'Muzyka algorytmiczna' (Algorithmic Music) course at the Adam Mickiewicz University in Poznań.

See also: Music and Markov Chains on Wikipedia.

Example usage

• Generate random sequence based on note X follows note Y frequencies in file example.mid

$ ./midi/midi-get example.mid | ./random-markov-path 10 | ./key2music
A    6
C    6
A    6
B    6
C    7
C#   6
C#   6
D#   6
D#   6
B    5
B    5

Programs

• dur2frac.cc - turns duration in number of 1/64 to more readable fraction
• graph-markov.cc - turns Markov chain described by TSV file into Graphviz DOT file
• key2music.cc - transforms key number into note and octave
• midi/bigrams-dur.go - transforms MIDI file into markov chain based on probability of occuring duration X for key Y
• midi/bigrams-notes.go - transforms MIDI file into markov chain based on probability of occuring key X after key Y
• random-markov-path.cc - takes length of path and produces sequence of keys based on probabilities in TSV

Dependencies

• C++ Compiler (supporting C++17)
• Go
• Make