Home : Tune Toys : Expresso
Expresso takes a simple musical expression (literally "X") and mutates it. In each generation, transformations are applied to components of the expression. This is a fractal technique known as an L-system. The more generations there are, the larger and more complex the expression gets (and the longer it can take to compute). The output varies wildly, from boring to fascinating. Press "Mutate" a few times till you get something that looks interesting, then click on the image to play it. See Composer's Quarry for examples of output.

Transformations:
 Seed: Randomize seed: Generations: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Phrase for X: Basic 1 - c,e,gBasic 2 - c,g,e,b-Basic 3 - c,gBasic 4 - cBasic 5 - co3,co4,co3,co2Chord 1 - c e gChord 2 - c e- gChord 3 - c e- g b-Chord 4 - c f gFile 1 - bachinv1.midFile 2 - bachinv2.midFile 3 - bachinv3.midFile 4 - bachinv4.midFile 5 - bachinv5.midFile 6 - bachinv6.midFile 7 - bachinv7.midFile 8 - bachinv8.mid # of Tracks: 1234 Randomize patches: noyes Results may not appear for a few seconds.Be patient!
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 After 20 generations the expression "X" became this: arpeggio((((transpose(((arpeggio((((echo(arpeggio(arpeggio((shuffle(step(echo(X,4,6) ,12) ) |transpose(shuffle(((X+transpose(X,4) ) +transpose(X,7) ) ) ,-7) ) ) ) ,4,6) +transpose(arpeggio((((transpose((transpose((X+X) ,-5) +transpose(((X+transpose(X,12) ) +echo(X,4,6) ) ,7) ) ,4) |transpose(transpose(X,4) ,-5) ) +transpose(transpose((X|(X+transpose(X,7) ) ) ,-5) ,4) ) +transpose((step(((arpeggio(X) +transpose(shuffle(transpose(X,4) ) ,4) ) +transpose(shuffle(transpose(X,4) ) ,7) ) ,12) +transpose(step(((((X+transpose(shuffle(X) ,4) ) +transpose(step(X,12) ,7) ) +transpose((X+transpose(X,12) ) ,4) ) +transpose(step(transpose(X,-5) ,12) ,7) ) ,12) ,12) ) ,7) ) ) ,4) ) +transpose(echo(transpose(shuffle(arpeggio(echo((X+X) ,4,6) ) ) ,4) ,4,6) ,7) ) +transpose(step(arpeggio(echo(transpose(step(X,12) ,4) ,4,6) ) ,12) ,7) ) ) +transpose(step(shuffle((arpeggio(((transpose(arpeggio(((transpose(X,-5) +transpose(shuffle(X) ,4) ) +transpose(echo((X+X) ,4,6) ,7) ) ) ,-7) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ) +transpose(transpose(((echo(X,4,6) +transpose((X+transpose((X+transpose(X,12) ) ,7) ) ,4) ) +transpose(arpeggio(arpeggio(X) ) ,7) ) ,4) ,7) ) ) +transpose(((((echo(X,4,6) +transpose(transpose((X+shuffle(X) ) ,4) ,12) ) +transpose((step(echo(arpeggio(X) ,4,6) ,12) +(step(shuffle(X) ,12) |shuffle((X+transpose(X,12) ) ) ) ) ,4) ) +transpose(echo(X,4,6) ,7) ) |shuffle(transpose(echo(arpeggio((arpeggio(((X+transpose(X,4) ) +transpose(X,7) ) ) |((echo(X,4,6) +transpose((X+transpose(X,12) ) ,4) ) +transpose((X|X) ,7) ) ) ) ,4,6) ,-7) ) ) ,-7) ) ) ,12) ,4) ) +transpose(echo(((transpose(((arpeggio((transpose(step(arpeggio(((X+transpose(X,4) ) +transpose(X,7) ) ) ,12) ,-7) +transpose(transpose((X+(X+transpose(X,12) ) ) ,-7) ,7) ) ) +transpose((echo(X,4,6) +step(X,12) ) ,4) ) +transpose(step(transpose(transpose(step(X,12) ,-5) ,-7) ,12) ,7) ) ,4) |(echo((transpose(transpose(X,-7) ,-7) +transpose(transpose(((echo((shuffle(X) |step(X,12) ) ,4,6) +transpose(((((transpose(X,-5) +transpose(transpose(X,-5) ,4) ) +transpose(step(X,12) ,7) ) +transpose(step(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ,4) ) +transpose(echo(X,4,6) ,7) ) ,4) ) +transpose(shuffle(echo(X,4,6) ) ,7) ) ,4) ,7) ) ,4,6) |arpeggio((((X+X) +transpose(((X|X) +transpose((X+transpose(X,7) ) ,12) ) ,7) ) |echo(X,4,6) ) ) ) ) |arpeggio(arpeggio((arpeggio(echo((X+X) ,4,6) ) |echo((transpose(X,-5) +transpose(transpose(X,-7) ,12) ) ,4,6) ) ) ) ) ,4,6) ,7) ) ,4) +transpose((arpeggio(echo((shuffle((echo(echo(transpose((transpose((((transpose(X,-7) +transpose(shuffle(transpose(X,-5) ) ,4) ) +transpose((((transpose(X,-5) +transpose(X,4) ) +transpose(echo(X,4,6) ,7) ) |step((X+X) ,12) ) ,7) ) +(shuffle(X) +echo(X,4,6) ) ) ,-7) +transpose(arpeggio((step(transpose(arpeggio(X) ,-5) ,12) |((X|shuffle(X) ) +arpeggio(X) ) ) ) ,7) ) ,-7) ,4,6) ,4,6) +echo((((((arpeggio(X) +transpose(arpeggio(X) ,7) ) +arpeggio(X) ) +transpose(((X+transpose(X,7) ) +arpeggio(X) ) ,7) ) +((arpeggio((arpeggio(X) +((X+transpose(X,4) ) +transpose(X,7) ) ) ) +transpose(((shuffle((((X|X) +transpose(step(X,12) ,4) ) +transpose(X,7) ) ) +transpose(shuffle(X) ,4) ) +transpose(echo(step(X,12) ,4,6) ,7) ) ,4) ) +transpose(echo(X,4,6) ,7) ) ) |(transpose(step((shuffle(X) +X) ,12) ,-7) +transpose(echo(X,4,6) ,7) ) ) ,4,6) ) ) +transpose(arpeggio(transpose(step(arpeggio(((X+transpose(((shuffle(X) +transpose(X,4) ) +transpose(transpose(X,-5) ,7) ) ,4) ) +transpose(transpose(arpeggio(X) ,4) ,7) ) ) ,12) ,-5) ) ,12) ) ,4,6) ) +(transpose(step(transpose(((transpose(step(echo(((transpose(transpose(shuffle(X) ,-7) ,4) +transpose(((arpeggio(X) +transpose((((X+transpose(X,4) ) +transpose(X,7) ) |X) ,7) ) |(shuffle(transpose(X,-5) ) |echo(X,4,6) ) ) ,4) ) +transpose(echo(transpose(arpeggio(echo(X,4,6) ) ,-7) ,4,6) ,7) ) ,4,6) ,12) ,-7) +transpose((shuffle(shuffle(shuffle(X) ) ) +(step(transpose(step(echo(X,4,6) ,12) ,4) ,12) +transpose(transpose((transpose(step(X,12) ,-7) |arpeggio(arpeggio((X+transpose(X,12) ) ) ) ) ,4) ,7) ) ) ,12) ) +transpose(arpeggio(shuffle(((transpose(shuffle(echo(X,4,6) ) ,4) +transpose((X|X) ,4) ) +transpose(((arpeggio(X) +transpose(arpeggio(X) ,12) ) |transpose((X+transpose(X,4) ) ,-5) ) ,7) ) ) ) ,12) ) ,-7) ,12) ,4) +transpose((arpeggio(arpeggio((((shuffle(echo(((((X|X) +transpose(X,12) ) +transpose(X,12) ) |transpose((((X+transpose(X,4) ) +transpose(X,7) ) +X) ,4) ) ,4,6) ) +arpeggio(transpose(step(((X+transpose(X,12) ) +X) ,12) ,4) ) ) +transpose(echo(step(((echo(step((((X|X) +transpose(X,4) ) +transpose(X,7) ) ,12) ,4,6) +transpose(transpose(echo(((((X+X) +transpose(X,4) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) +transpose(X,4) ) ,4,6) ,-7) ,4) ) +transpose(arpeggio(transpose(transpose(step(X,12) ,-5) ,-5) ) ,7) ) ,12) ,4,6) ,4) ) +transpose(step(arpeggio((arpeggio((((arpeggio((X|X) ) +transpose(((X|X) +arpeggio((X+transpose(step(X,12) ,12) ) ) ) ,4) ) +transpose(((step(X,12) +transpose((X+X) ,4) ) +transpose(X,7) ) ,7) ) +transpose(((transpose(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-7) ,4) +transpose(((arpeggio(echo(X,4,6) ) +transpose((transpose(X,-5) |(((X+transpose(X,12) ) +transpose(X,4) ) +transpose(X,7) ) ) ,4) ) +transpose(X,7) ) ,4) ) +transpose((X|echo(echo(X,4,6) ,4,6) ) ,7) ) ,7) ) ) |transpose(echo((shuffle(step(transpose(echo(X,4,6) ,-5) ,12) ) +(shuffle(step(X,12) ) |((transpose(X,-5) +transpose(step(X,12) ,4) ) +transpose(echo(X,4,6) ,7) ) ) ) ,4,6) ,-5) ) ) ,12) ,7) ) ) ) |((((transpose(step(echo(((arpeggio(transpose(X,4) ) +(((step(((step(X,12) +transpose(echo(X,4,6) ,4) ) +transpose((X|X) ,7) ) ,12) +transpose(((transpose(echo(X,4,6) ,4) +transpose(X,4) ) +transpose((X|X) ,7) ) ,4) ) +transpose(echo(X,4,6) ,7) ) +transpose((((arpeggio(X) +transpose((step(X,12) +transpose(transpose(X,4) ,12) ) ,12) ) +transpose(((transpose(X,-5) +transpose(arpeggio(X) ,4) ) +transpose(echo(X,4,6) ,7) ) ,4) ) +transpose(arpeggio(echo(echo(X,4,6) ,4,6) ) ,7) ) ,12) ) ) +transpose(step(echo(X,4,6) ,12) ,-5) ) ,4,6) ,12) ,-7) +transpose(((arpeggio((((transpose(((step(X,12) +transpose(((X+X) |transpose(X,-7) ) ,7) ) +X) ,-5) +transpose(transpose(transpose(shuffle(X) ,4) ,-7) ,4) ) +transpose(arpeggio(transpose(transpose(((X+transpose(X,4) ) +transpose(step(X,12) ,7) ) ,-7) ,-7) ) ,7) ) +((step(X,12) |shuffle(((X+transpose(X,4) ) +transpose(X,7) ) ) ) +((transpose(X,-5) +transpose(X,4) ) +transpose((X+transpose(X,12) ) ,7) ) ) ) ) +transpose((echo(transpose(arpeggio(transpose(X,-7) ) ,4) ,4,6) +step(arpeggio(((echo((X+X) ,4,6) +transpose(((transpose((X+transpose(X,7) ) ,-7) +transpose(arpeggio(X) ,4) ) +transpose(step(step(X,12) ,12) ,7) ) ,4) ) +transpose((arpeggio(X) +transpose(echo(X,4,6) ,12) ) ,7) ) ) ,12) ) ,4) ) +transpose(arpeggio(step(step(((echo(step(X,12) ,4,6) +transpose(echo(arpeggio(transpose(X,4) ) ,4,6) ,4) ) +transpose(step(((arpeggio(echo(X,4,6) ) +transpose(arpeggio(X) ,7) ) +step(transpose(X,4) ,12) ) ,12) ,7) ) ,12) ,12) ) ,7) ) ,7) ) +transpose(echo(arpeggio(transpose(arpeggio(step(((((X+transpose(X,7) ) +transpose(X,4) ) +transpose(arpeggio(((X+transpose(X,4) ) +transpose(X,7) ) ) ,7) ) +transpose(shuffle((step(X,12) +shuffle(((transpose(X,4) +transpose(X,4) ) +transpose(transpose(X,-5) ,7) ) ) ) ) ,7) ) ,12) ) ,-5) ) ,4,6) ,4) ) +transpose(((((transpose(shuffle(arpeggio(transpose((((X+transpose(X,7) ) +transpose(transpose(X,-5) ,4) ) +transpose(shuffle(X) ,7) ) ,-7) ) ) ,-7) +echo(step((shuffle(X) +echo((X+X) ,4,6) ) ,12) ,4,6) ) +transpose(transpose(arpeggio(echo(transpose(X,-5) ,4,6) ) ,-7) ,7) ) +transpose((arpeggio(transpose(transpose(shuffle((transpose(X,4) +transpose(((X+X) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ) ,7) ) ) ,-5) ,4) ) +transpose(step((transpose((((X+echo((X|X) ,4,6) ) +transpose((X+transpose(X,12) ) ,4) ) +transpose(X,7) ) ,-5) |step(echo(arpeggio(((step((X+X) ,12) +transpose(transpose((X+X) ,4) ,4) ) +transpose((arpeggio(X) +transpose((X|transpose(X,-7) ) ,7) ) ,7) ) ) ,4,6) ,12) ) ,12) ,7) ) ,4) ) +transpose((((step(((transpose(shuffle(transpose(X,-7) ) ,-7) +transpose(shuffle(transpose(X,-7) ) ,7) ) +step(transpose(transpose(arpeggio(step(arpeggio(X) ,12) ) ,-7) ,4) ,12) ) ,12) +transpose(echo(((arpeggio(step(arpeggio(X) ,12) ) +transpose(echo(echo(echo(X,4,6) ,4,6) ,4,6) ,4) ) +transpose(transpose(((echo(echo(X,4,6) ,4,6) +transpose(shuffle(X) ,4) ) +transpose((X+transpose(X,12) ) ,7) ) ,4) ,7) ) ,4,6) ,4) ) +transpose(echo(((transpose(step(X,12) ,-5) +transpose(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-7) ,4) ) +transpose(echo(X,4,6) ,7) ) ,4,6) ,7) ) +transpose(echo(shuffle(transpose(echo(((X+X) +transpose(X,12) ) ,4,6) ,-5) ) ,4,6) ,7) ) ,7) ) ,7) ) +transpose((step(arpeggio(((step(((step(echo(transpose(X,-7) ,4,6) ,12) +transpose((transpose((X+transpose(step(X,12) ,12) ) ,-5) +transpose(step((X+transpose(X,7) ) ,12) ,12) ) ,4) ) +transpose(((((step(((((X+transpose(X,4) ) +transpose(X,7) ) +transpose((X+transpose(X,12) ) ,4) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) ,12) +transpose(shuffle(X) ,4) ) +transpose(echo(X,4,6) ,7) ) +transpose(transpose(transpose(X,-5) ,-5) ,4) ) +transpose(step(step(X,12) ,12) ,7) ) ,7) ) ,12) +transpose(((shuffle(transpose(step(X,12) ,-5) ) +transpose(shuffle(arpeggio(((X+transpose(X,4) ) +transpose(X,7) ) ) ) ,4) ) +transpose((echo((X|X) ,4,6) +transpose((X+transpose(X,7) ) ,12) ) ,7) ) ,4) ) +transpose((transpose(step(((X+X) +echo(X,4,6) ) ,12) ,-7) +arpeggio((X+transpose(X,12) ) ) ) ,7) ) ) ,12) +(((transpose((transpose((((X+step(X,12) ) +transpose(transpose((X+X) ,-5) ,4) ) +transpose(step(transpose(X,-7) ,12) ,7) ) ,-7) |step(((arpeggio(X) +transpose(X,4) ) +transpose((X+X) ,7) ) ,12) ) ,-7) +transpose((shuffle(echo((shuffle((transpose(echo(X,4,6) ,4) +X) ) +transpose(echo((((transpose(X,4) |transpose(X,-7) ) +transpose((X+X) ,4) ) +transpose(echo(X,4,6) ,7) ) ,4,6) ,12) ) ,4,6) ) +transpose(arpeggio((transpose((X+((X+transpose(X,4) ) +transpose(X,7) ) ) ,-5) |arpeggio(echo(echo(X,4,6) ,4,6) ) ) ) ,7) ) ,4) ) +transpose(((((((X+transpose(X,7) ) +transpose(X,7) ) +transpose(((X+transpose(step((X+transpose(X,7) ) ,12) ,4) ) +transpose(step(arpeggio((X+X) ) ,12) ,7) ) ,7) ) +step(shuffle(shuffle(X) ) ,12) ) +transpose(step(step(step(step((X+X) ,12) ,12) ,12) ,12) ,4) ) +transpose(X,7) ) ,7) ) +transpose(step((step((transpose(shuffle((step(transpose(X,4) ,12) +((X+transpose(X,4) ) +transpose(X,7) ) ) ) ,4) |shuffle(arpeggio((X|X) ) ) ) ,12) +transpose(((echo(transpose((arpeggio(echo(X,4,6) ) +transpose((transpose(transpose(X,4) ,-5) +transpose(echo(step((X|X) ,12) ,4,6) ,12) ) ,12) ) ,-5) ,4,6) +transpose(arpeggio(transpose(((arpeggio(X) +transpose((arpeggio(transpose((X|X) ,4) ) +transpose(echo(((X+transpose(X,4) ) +transpose(X,7) ) ,4,6) ,7) ) ,4) ) +transpose(transpose(step(step(X,12) ,12) ,-5) ,7) ) ,-5) ) ,4) ) +transpose((((step(transpose(echo(X,4,6) ,4) ,12) +transpose((((echo(shuffle(echo((X+transpose(X,12) ) ,4,6) ) ,4,6) +transpose(transpose(X,-5) ,4) ) +transpose(shuffle(arpeggio(shuffle(X) ) ) ,7) ) +transpose(transpose(X,4) ,12) ) ,4) ) +transpose(transpose(transpose(((X+transpose(transpose(X,-5) ,4) ) +transpose((X+X) ,7) ) ,4) ,4) ,7) ) +(((transpose(step(arpeggio(X) ,12) ,4) |transpose(transpose(X,4) ,-5) ) +transpose((echo(echo((X|X) ,4,6) ,4,6) +transpose(((((((echo(X,4,6) +transpose(echo(X,4,6) ,4) ) +transpose(echo(X,4,6) ,7) ) +transpose(X,4) ) +transpose((X+transpose(echo(X,4,6) ,12) ) ,7) ) +transpose((echo(X,4,6) +transpose(arpeggio(X) ,12) ) ,4) ) +transpose(step(arpeggio(X) ,12) ,7) ) ,7) ) ,4) ) +transpose(arpeggio(((X|transpose(X,-5) ) |(X|X) ) ) ,7) ) ) ,7) ) ,7) ) ,12) ,12) ) ) ,7) ) ) ,7) ) ) ,7) ) +transpose((echo(arpeggio((transpose((shuffle((arpeggio(X) |X) ) +transpose(transpose(arpeggio(transpose(echo(shuffle(((X+transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ) +transpose(X,7) ) ) ,4,6) ,-7) ) ,-5) ,7) ) ,-7) +transpose((transpose(((transpose(((X|X) +(X|X) ) ,-7) +transpose(echo(step(transpose(echo(X,4,6) ,-5) ,12) ,4,6) ,4) ) +transpose(((shuffle(X) +transpose(echo(X,4,6) ,12) ) +arpeggio(transpose(echo(X,4,6) ,-7) ) ) ,7) ) ,4) +transpose(((transpose(transpose(shuffle(transpose(transpose(transpose(X,4) ,-5) ,4) ) ,-5) ,4) +transpose(step(shuffle(shuffle(((X|X) +transpose(X,7) ) ) ) ,12) ,7) ) |echo(arpeggio((X+transpose(X,12) ) ) ,4,6) ) ,12) ) ,-7) ) ) ,4,6) |(((arpeggio(transpose(step(arpeggio((shuffle(shuffle(echo(X,4,6) ) ) +transpose((echo(step(X,12) ,4,6) |(transpose(X,-7) |arpeggio(X) ) ) ,12) ) ) ,12) ,-7) ) +transpose(transpose(((echo(arpeggio(shuffle(transpose((X|X) ,-7) ) ) ,4,6) |shuffle(transpose(arpeggio(arpeggio((arpeggio(X) +transpose(step(X,12) ,7) ) ) ) ,4) ) ) +transpose(((echo(((((X+transpose(X,4) ) +transpose(X,7) ) +transpose((X+X) ,4) ) +transpose(X,7) ) ,4,6) +transpose(shuffle((step(step(shuffle(((X+transpose(X,4) ) +transpose(echo(X,4,6) ,7) ) ) ,12) ,12) +echo((echo(shuffle(X) ,4,6) +transpose(step(X,12) ,4) ) ,4,6) ) ) ,4) ) +transpose(step((transpose(transpose(transpose(X,-5) ,-5) ,-7) |echo(X,4,6) ) ,12) ,7) ) ,7) ) ,-7) ,12) ) +((echo(shuffle(echo(shuffle(step((step(step(arpeggio(X) ,12) ,12) |echo((X|echo(X,4,6) ) ,4,6) ) ,12) ) ,4,6) ) ,4,6) +transpose((((echo(arpeggio((step(X,12) +transpose(X,12) ) ) ,4,6) |transpose((((echo(X,4,6) |X) +transpose(X,4) ) +transpose(step(transpose(X,-5) ,12) ,7) ) ,-5) ) +transpose(transpose(arpeggio(shuffle(arpeggio(echo((X|X) ,4,6) ) ) ) ,-5) ,7) ) +transpose(((((((((((transpose(X,-7) +transpose(X,4) ) +transpose(X,7) ) |(X|X) ) +(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) |arpeggio(echo(X,4,6) ) ) ) +transpose((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(X,7) ) ,4) ) +transpose(((((((((echo(X,4,6) +transpose(X,4) ) +transpose((X+transpose(X,7) ) ,7) ) +transpose(shuffle(shuffle(X) ) ,4) ) +transpose(transpose((X+transpose(X,12) ) ,-5) ,7) ) +transpose(((X+transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) +transpose((X+X) ,4) ) ,4) ) +transpose(transpose(transpose(X,-5) ,-7) ,7) ) +transpose((transpose(step(X,12) ,4) +(shuffle(shuffle(X) ) +transpose(echo(X,4,6) ,7) ) ) ,4) ) +transpose(shuffle((X+transpose(step(X,12) ,7) ) ) ,7) ) ,7) ) +transpose(((transpose(arpeggio(X) ,4) +transpose(transpose(transpose(X,-5) ,-5) ,4) ) +transpose(((X+transpose(step(X,12) ,4) ) +transpose((X+X) ,7) ) ,7) ) ,4) ) +transpose(echo(transpose(transpose(transpose(((arpeggio(X) +transpose((X|X) ,4) ) +transpose((X+X) ,7) ) ,-5) ,4) ,-5) ,4,6) ,7) ) +transpose(shuffle((shuffle(step(step(transpose(X,4) ,12) ,12) ) |((step(X,12) +transpose(echo(X,4,6) ,4) ) +transpose(step(X,12) ,7) ) ) ) ,4) ) +transpose(transpose(((step(transpose(((X+transpose(X,7) ) +transpose(((transpose(X,4) +transpose(echo(X,4,6) ,4) ) +transpose(shuffle(X) ,7) ) ,12) ) ,-5) ,12) +transpose(transpose(step(step(arpeggio(X) ,12) ,12) ,4) ,4) ) +transpose((echo(echo((X+X) ,4,6) ,4,6) +transpose(arpeggio(arpeggio(X) ) ,-5) ) ,7) ) ,-7) ,7) ) ,7) ) ,12) ) |shuffle(((shuffle(shuffle(((transpose(echo(X,4,6) ,4) +transpose(echo(((X+transpose((((X+transpose(X,7) ) +transpose(X,4) ) +transpose(echo(X,4,6) ,7) ) ,4) ) +transpose((X+X) ,7) ) ,4,6) ,4) ) +transpose((transpose(transpose(shuffle(shuffle(X) ) ,4) ,4) +transpose(arpeggio((X+transpose(X,7) ) ) ,12) ) ,7) ) ) ) +transpose(((echo(arpeggio(echo(echo(X,4,6) ,4,6) ) ,4,6) +transpose(((step(X,12) +transpose(X,12) ) +transpose((X+transpose(X,7) ) ,7) ) ,4) ) +transpose((transpose(arpeggio(transpose((((X+transpose(arpeggio(X) ,7) ) +transpose(X,4) ) +transpose(transpose(echo(X,4,6) ,4) ,7) ) ,4) ) ,4) +transpose((shuffle(X) +transpose(transpose(X,-5) ,12) ) ,-7) ) ,7) ) ,4) ) +transpose(transpose(transpose(shuffle((shuffle(X) |echo(shuffle(((X+transpose(X,4) ) +transpose(X,7) ) ) ,4,6) ) ) ,-5) ,-5) ,7) ) ) ) ) +(shuffle((shuffle(echo(transpose(((echo((transpose(X,-7) +transpose(transpose(X,-7) ,7) ) ,4,6) +transpose(shuffle(echo(X,4,6) ) ,4) ) +transpose((shuffle(step(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ) +transpose(((step(X,12) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ) +transpose((X|X) ,7) ) ,-7) ) ,7) ) ,4) ,4,6) ) +transpose(step(X,12) ,7) ) ) |(transpose(((((shuffle(((X+transpose(X,4) ) +transpose(X,7) ) ) +transpose(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-7) ,12) ) +transpose(echo(step(((shuffle(shuffle(X) ) |arpeggio(X) ) |transpose(X,4) ) ,12) ,4,6) ,4) ) +transpose(((X|X) +transpose(step(step(echo(transpose((X|X) ,4) ,4,6) ,12) ,12) ,12) ) ,7) ) +transpose(shuffle(transpose(transpose(X,-7) ,4) ) ,12) ) ,-5) +((echo(echo(echo(shuffle(echo(transpose((((arpeggio(X) |step(X,12) ) +transpose(echo(X,4,6) ,4) ) +transpose(X,7) ) ,-5) ,4,6) ) ,4,6) ,4,6) ,4,6) +transpose(transpose(echo(arpeggio(echo((((((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(arpeggio(X) ,7) ) +transpose(arpeggio(X) ,4) ) +transpose(step(X,12) ,7) ) +transpose((X+transpose(step((X|X) ,12) ,7) ) ,4) ) +transpose((X+transpose(X,7) ) ,7) ) ,4,6) ) ,4,6) ,4) ,4) ) +transpose(((transpose(transpose(X,-7) ,-5) +transpose(transpose(transpose(((X+transpose(X,12) ) |echo(X,4,6) ) ,4) ,4) ,4) ) +transpose(shuffle(transpose(transpose(step(step(X,12) ,12) ,-7) ,-7) ) ,7) ) ,7) ) ) ) ) ) ,4) ) +transpose(echo(shuffle(transpose(((step(shuffle(((((((arpeggio(arpeggio(step(X,12) ) ) +step((arpeggio(X) |echo(X,4,6) ) ,12) ) +transpose((transpose((shuffle(X) |(((X+transpose(X,12) ) +transpose(shuffle(X) ,4) ) +transpose((X+X) ,7) ) ) ,-7) +transpose(X,4) ) ,4) ) +transpose(arpeggio((X+transpose(X,7) ) ) ,7) ) +transpose(transpose(transpose(step(transpose(transpose(X,-5) ,-7) ,12) ,-5) ,-5) ,4) ) +transpose((((((echo(X,4,6) |transpose(X,-7) ) +transpose(((transpose(shuffle(X) ,4) +transpose((((arpeggio(X) +transpose(X,12) ) +transpose((X+transpose(X,12) ) ,4) ) +transpose((((X+transpose(X,12) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) ,7) ) ,4) ) +transpose((echo(X,4,6) +transpose(arpeggio(transpose(X,-5) ) ,12) ) ,7) ) ,4) ) +transpose(((step(X,12) +echo(X,4,6) ) +transpose((step(X,12) +transpose(shuffle(step(X,12) ) ,7) ) ,12) ) ,7) ) +transpose(((arpeggio(X) |arpeggio(transpose(shuffle(X) ,-7) ) ) +transpose(echo(echo(((X+transpose(X,4) ) +transpose(X,7) ) ,4,6) ,4,6) ,12) ) ,7) ) +(((X+transpose(step(X,12) ,7) ) +step(X,12) ) |arpeggio(transpose((X|X) ,4) ) ) ) ,7) ) +((shuffle(step(shuffle(echo(step(X,12) ,4,6) ) ,12) ) +transpose(step(step(step(arpeggio(shuffle(arpeggio(X) ) ) ,12) ,12) ,12) ,4) ) +transpose(arpeggio(transpose((X|(X+transpose(X,12) ) ) ,-5) ) ,7) ) ) ) ,12) +transpose(echo(((arpeggio(arpeggio((transpose(transpose(step(transpose(X,4) ,12) ,-5) ,4) +transpose(transpose(transpose(step(transpose(X,-7) ,12) ,4) ,-7) ,7) ) ) ) +transpose((echo(arpeggio((((X+transpose(X,12) ) +transpose(transpose((arpeggio(X) +transpose(echo(X,4,6) ,12) ) ,-7) ,4) ) +transpose((X+transpose(step(echo(X,4,6) ,12) ,12) ) ,7) ) ) ,4,6) +(transpose(step(transpose((arpeggio(echo(X,4,6) ) +transpose(arpeggio(X) ,12) ) ,-7) ,12) ,-5) +transpose(transpose(step(transpose(transpose((X+transpose(arpeggio(X) ,7) ) ,-5) ,4) ,12) ,-7) ,7) ) ) ,4) ) +transpose(shuffle((transpose(X,-5) |(X+transpose(X,7) ) ) ) ,7) ) ,4,6) ,4) ) +transpose(shuffle(transpose((((step((transpose(X,-7) +transpose(transpose(X,4) ,12) ) ,12) +transpose(step((echo(X,4,6) +transpose(X,-7) ) ,12) ,7) ) +transpose(step((((step(echo((X+transpose(X,7) ) ,4,6) ,12) +transpose(echo(((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(transpose(arpeggio(X) ,-5) ,4) ) +transpose(transpose(X,4) ,7) ) ,4,6) ,12) ) +transpose((transpose(arpeggio(step(X,12) ) ,-5) +echo((arpeggio(transpose(X,-7) ) +transpose(X,12) ) ,4,6) ) ,4) ) +transpose((echo(arpeggio(transpose(X,4) ) ,4,6) |(transpose(X,-7) |(((X|X) +transpose(X,4) ) +transpose(X,7) ) ) ) ,7) ) ,12) ,4) ) +transpose(echo(step(echo(echo(X,4,6) ,4,6) ,12) ,4,6) ,7) ) ,4) ) ,7) ) ,-5) ) ,4,6) ,7) ) ) random seed used was 231738213

The algorithm for Expresso is written in KeyKit, and here's the source code.