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:
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Phrase for X:
# of Tracks:
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After 20 generations the expression "X" became this:
transpose(((((((arpeggio(((transpose(((((transpose(transpose((transpose(X,-5) +transpose(X,12) ) ,4) ,-7) +transpose(transpose(X,4) ,4) ) +transpose((transpose(X,4) |(X+transpose(X,12) ) ) ,7) ) +transpose(transpose(echo(transpose((X+transpose(X,12) ) ,-5) ,4,6) ,-7) ,7) ) +shuffle(transpose(X,-7) ) ) ,4) +transpose(((step(transpose(((transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-5) +transpose((transpose(X,-7) +transpose(((X+transpose(X,12) ) |transpose(X,-7) ) ,7) ) ,4) ) +transpose((X+X) ,7) ) ,4) ,12) |transpose(echo(((X+transpose(X,4) ) +transpose(X,7) ) ,4,6) ,-7) ) +transpose((transpose(transpose((shuffle(X) +transpose(transpose(arpeggio(X) ,4) ,12) ) ,4) ,4) |(transpose((X+transpose((X|X) ,7) ) ,-5) |transpose((step(X,12) |(X+transpose(X,7) ) ) ,-7) ) ) ,12) ) ,7) ) +transpose(arpeggio(transpose((step(transpose(transpose(X,4) ,-5) ,12) +transpose(((step(step(echo(X,4,6) ,12) ,12) |transpose((transpose(arpeggio(X) ,-7) +transpose(transpose(transpose(shuffle((X+transpose(X,12) ) ) ,4) ,-5) ,12) ) ,-7) ) +transpose(transpose(((X|X) +transpose(X,12) ) ,4) ,7) ) ,12) ) ,4) ) ,12) ) ) +step(transpose((((transpose(transpose((transpose(X,-5) |step(transpose(arpeggio(X) ,-5) ,12) ) ,-7) ,-7) +transpose(transpose(((transpose(transpose(X,-7) ,-5) +(step((X+X) ,12) |echo(X,4,6) ) ) |(echo(((X+transpose(X,12) ) +transpose(transpose(X,4) ,12) ) ,4,6) |(echo(X,4,6) +transpose((X+transpose(X,12) ) ,12) ) ) ) ,-5) ,4) ) +transpose(transpose((transpose(echo(transpose(arpeggio(X) ,-5) ,4,6) ,4) +transpose((transpose(X,-7) +transpose(echo((X+transpose(X,7) ) ,4,6) ,12) ) ,12) ) ,-7) ,7) ) +transpose(transpose(transpose(shuffle(echo(X,4,6) ) ,4) ,4) ,7) ) ,-5) ,12) ) +transpose(transpose((((transpose(shuffle(((transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-5) +transpose((X+X) ,7) ) +transpose(((transpose(X,-5) +X) |(X+transpose(X,12) ) ) ,12) ) ) ,-5) +transpose(((step(X,12) |step(X,12) ) +transpose(echo((arpeggio(step(X,12) ) |echo(X,4,6) ) ,4,6) ,12) ) ,4) ) +transpose((transpose(echo(((X+transpose(arpeggio(X) ,7) ) |step(X,12) ) ,4,6) ,-5) |transpose((transpose(transpose(X,4) ,-5) +transpose((transpose(X,4) |shuffle(X) ) ,7) ) ,-7) ) ,7) ) +transpose(echo((transpose(arpeggio(transpose((X|X) ,-7) ) ,-5) |transpose((echo(transpose(X,-7) ,4,6) +transpose(transpose(X,4) ,7) ) ,-5) ) ,4,6) ,7) ) ,-5) ,4) ) +transpose(transpose((transpose(arpeggio((transpose(transpose(transpose((((arpeggio(shuffle((X|X) ) ) +transpose(step((((X+transpose(X,4) ) +transpose(echo(X,4,6) ,7) ) +transpose(step(X,12) ,7) ) ,12) ,4) ) +transpose(step(transpose(transpose(X,-7) ,-7) ,12) ,7) ) +transpose((transpose((transpose(step(X,12) ,-7) +transpose(transpose(X,-7) ,12) ) ,-5) +step(step(X,12) ,12) ) ,12) ) ,-5) ,-7) ,4) |(transpose((((step(X,12) +transpose((X+X) ,12) ) +transpose(X,12) ) +transpose(transpose(transpose(X,-5) ,-5) ,12) ) ,-7) |transpose((shuffle((arpeggio(transpose(X,-5) ) +transpose(transpose(X,-7) ,7) ) ) +((transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-5) +transpose(transpose(echo((X+transpose(X,7) ) ,4,6) ,-5) ,4) ) +transpose(transpose(X,-5) ,7) ) ) ,4) ) ) ) ,4) |((transpose(step((step(transpose(transpose((arpeggio(X) +transpose(X,12) ) ,-7) ,-5) ,12) |((step(transpose(((X+transpose(X,12) ) +transpose(transpose(X,-5) ,12) ) ,4) ,12) +transpose((step(step(transpose(X,4) ,12) ,12) +transpose(transpose((transpose(X,-7) |((transpose(X,-7) +transpose(X,4) ) +transpose((X+transpose(X,12) ) ,7) ) ) ,4) ,7) ) ,4) ) +transpose(transpose(transpose(step((X+transpose(X,12) ) ,12) ,4) ,-7) ,7) ) ) ,12) ,-7) |((transpose(shuffle((transpose(transpose(X,4) ,-5) |X) ) ,-7) +step((transpose(shuffle(transpose(X,4) ) ,4) |transpose((X+transpose(X,7) ) ,4) ) ,12) ) +transpose(transpose((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) ,4) ,12) ) ) |echo(transpose(transpose((((X+transpose(arpeggio(X) ,7) ) +transpose(((transpose(X,-7) +transpose(X,7) ) +transpose(X,12) ) ,7) ) |transpose(transpose(transpose((X|X) ,-5) ,-7) ,4) ) ,-7) ,4) ,4,6) ) ) ,-7) ,7) ) +transpose((transpose(shuffle(transpose(transpose(transpose(shuffle((((X+transpose(X,7) ) +transpose(transpose(transpose(X,4) ,-5) ,7) ) |echo(step(transpose(transpose(X,4) ,-5) ,12) ,4,6) ) ) ,-7) ,4) ,-7) ) ,-7) +transpose(transpose(shuffle(transpose(transpose(arpeggio(((transpose(((((transpose(((X+X) +transpose(X,7) ) ,4) +transpose(arpeggio(X) ,7) ) |transpose(transpose(transpose(X,-7) ,4) ,-7) ) +transpose(step((X+transpose(X,7) ) ,12) ,4) ) +transpose(transpose(transpose((((((X|step(X,12) ) +transpose(echo(X,4,6) ,4) ) +transpose(X,7) ) +transpose(transpose((X|X) ,4) ,4) ) +transpose((transpose(X,-7) |echo(X,4,6) ) ,7) ) ,4) ,-7) ,7) ) ,-7) +transpose(transpose(step(((step(((X+transpose(shuffle(X) ,12) ) |(X+transpose(X,12) ) ) ,12) +transpose((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(X,12) ) ,12) ) |((X+X) +transpose((transpose(arpeggio(X) ,-7) +transpose(step(X,12) ,12) ) ,-5) ) ) ,12) ,-7) ,4) ) +transpose((transpose(X,4) |transpose((shuffle(transpose(shuffle(((X+transpose(X,4) ) +transpose(X,7) ) ) ,-5) ) |transpose((X+transpose((X|X) ,12) ) ,-5) ) ,-7) ) ,7) ) ) ,-7) ,-5) ) ,-7) ,-7) ) ,12) ) +transpose(transpose((((step(((transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-7) +transpose(X,7) ) +transpose(transpose((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(transpose(X,-7) ,7) ) ,-7) ,7) ) ,12) +transpose((((((transpose(transpose(X,4) ,-5) |transpose((X+X) ,4) ) +transpose((((((X+transpose(X,12) ) |X) +transpose(X,4) ) +transpose((transpose(transpose(X,-7) ,-5) |echo(X,4,6) ) ,7) ) |(((((X+X) +transpose(shuffle(X) ,4) ) +transpose(echo(X,4,6) ,7) ) |step(transpose(X,4) ,12) ) +transpose(((echo(transpose(X,-5) ,4,6) +transpose((((X|X) +transpose(arpeggio(X) ,4) ) +transpose(X,7) ) ,7) ) |((X+transpose(X,7) ) +transpose(transpose(X,4) ,12) ) ) ,12) ) ) ,4) ) +transpose(((arpeggio((transpose(X,-7) |((X+transpose(X,4) ) +transpose(X,7) ) ) ) |transpose(X,4) ) +transpose(((echo(((X+transpose(((X+transpose(transpose(X,-7) ,4) ) +transpose(X,7) ) ,4) ) +transpose((transpose(X,-5) +transpose(X,12) ) ,7) ) ,4,6) +transpose(((((X|X) +transpose((X+X) ,4) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) |X) ,4) ) +transpose(((X|((X+transpose(X,4) ) +transpose(X,7) ) ) +transpose(echo(transpose(X,-5) ,4,6) ,12) ) ,7) ) ,12) ) ,7) ) +transpose(step(echo(arpeggio((X+((X+transpose(X,4) ) +transpose(X,7) ) ) ) ,4,6) ,12) ,4) ) +transpose((transpose(X,4) +transpose(transpose((X+transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ) ,-7) ,12) ) ,7) ) ,7) ) |((transpose((X+transpose(X,12) ) ,-7) +transpose((X+transpose(X,7) ) ,7) ) +transpose(((transpose((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(X,12) ) ,-5) +transpose(((X+transpose(X,12) ) +transpose(X,7) ) ,12) ) +transpose(arpeggio(step(step(transpose(step((X+transpose(X,12) ) ,12) ,4) ,12) ,12) ) ,7) ) ,12) ) ) |transpose(transpose((X|((transpose(arpeggio(echo(X,4,6) ) ,-5) +transpose(transpose((arpeggio(X) +transpose((X|X) ,7) ) ,-5) ,4) ) +transpose(arpeggio(arpeggio(transpose(X,4) ) ) ,7) ) ) ,4) ,4) ) ,-5) ,-5) ) +transpose(((((transpose((((step(transpose(transpose(arpeggio(transpose(arpeggio(transpose((X|(X+transpose(X,7) ) ) ,-7) ) ,4) ) ,4) ,-5) ,12) +transpose(transpose(transpose((shuffle(transpose(((transpose((X+X) ,4) +transpose(transpose(X,-7) ,4) ) +transpose(((X+transpose(X,4) ) +transpose(transpose(X,4) ,7) ) ,7) ) ,4) ) +transpose((((transpose(step(X,12) ,-7) |((((echo(X,4,6) +transpose(transpose(X,-5) ,4) ) +transpose(X,7) ) +transpose(transpose(X,-5) ,4) ) +transpose(((X+transpose(X,12) ) +transpose(X,12) ) ,7) ) ) +transpose(step(((transpose(X,-5) +transpose(arpeggio(transpose(X,-7) ) ,4) ) +transpose(X,7) ) ,12) ,7) ) |(transpose(arpeggio(transpose(X,4) ) ,4) |((arpeggio(transpose(X,4) ) +transpose(((echo(transpose(X,-5) ,4,6) +transpose(transpose(X,4) ,4) ) +transpose(X,7) ) ,4) ) +transpose(((X|X) +transpose(echo(X,4,6) ,12) ) ,7) ) ) ) ,7) ) ,-7) ,4) ,4) ) +transpose(transpose(step(transpose(transpose(X,-7) ,-7) ,12) ,-7) ,7) ) +transpose(transpose(transpose(echo(shuffle(transpose(transpose((X|X) ,4) ,-5) ) ,4,6) ,-5) ,-7) ,7) ) ,-5) +(transpose((transpose(echo((echo(shuffle(echo(transpose((X+X) ,-7) ,4,6) ) ,4,6) |step(transpose(X,4) ,12) ) ,4,6) ,-5) +transpose(echo((transpose(((transpose(arpeggio(X) ,-7) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) +transpose((X|((X+transpose(X,4) ) +transpose(X,7) ) ) ,7) ) ,-7) +transpose(arpeggio((transpose((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(X,12) ) ,-7) +transpose(step(transpose(X,-7) ,12) ,7) ) ) ,7) ) ,4,6) ,12) ) ,4) +transpose((step(step(transpose(echo(((shuffle(X) |X) +transpose(transpose(arpeggio((X|X) ) ,4) ,12) ) ,4,6) ,-5) ,12) ,12) +transpose(step(arpeggio(echo(step(step(transpose(step(arpeggio(arpeggio((X+transpose(X,7) ) ) ) ,12) ,4) ,12) ,12) ,4,6) ) ,12) ,12) ) ,7) ) ) +transpose((((transpose(transpose((echo(transpose(X,-7) ,4,6) +(transpose(transpose(transpose(((X+transpose(X,12) ) |transpose(X,-5) ) ,-5) ,4) ,-7) |((transpose(X,4) |transpose(X,-7) ) +transpose(echo(step(transpose(transpose(X,-5) ,-7) ,12) ,4,6) ,7) ) ) ) ,4) ,4) +transpose((((transpose(transpose((transpose(X,-7) +(X|X) ) ,4) ,4) +transpose(transpose(((X+transpose(transpose(transpose(X,-7) ,4) ,4) ) +transpose(shuffle((X+transpose(X,7) ) ) ,7) ) ,-7) ,12) ) |arpeggio(transpose(step(((((X|X) +(X|X) ) +transpose(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-7) ,4) ) +transpose((transpose(X,-7) |transpose(X,4) ) ,7) ) ,12) ,-7) ) ) |((transpose((transpose(step(X,12) ,-5) |step(((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ) +transpose((X+transpose(transpose(X,-7) ,7) ) ,7) ) ,12) ) ,-5) +transpose(((transpose(transpose((X+transpose((X+transpose(X,12) ) ,12) ) ,4) ,4) |((X|X) +transpose(X,-5) ) ) +transpose(((step((X|arpeggio(X) ) ,12) +transpose((transpose((X|(X+transpose(X,7) ) ) ,-5) +transpose(transpose(X,-7) ,7) ) ,7) ) +transpose((transpose((X+transpose((X+transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ) ,12) ) ,4) |transpose((X|transpose((X+X) ,-7) ) ,-5) ) ,7) ) ,7) ) ,12) ) +transpose((((X+(X|X) ) +(((X+transpose((X+X) ,7) ) |transpose(step(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ,-7) ) +transpose(transpose(step(X,12) ,4) ,7) ) ) +transpose(shuffle(X) ,4) ) ,7) ) ) ,12) ) |transpose(step(arpeggio((((((echo((X+transpose(X,7) ) ,4,6) +transpose((X+X) ,7) ) +transpose(shuffle(X) ,12) ) +transpose(transpose(arpeggio(echo(step(echo(X,4,6) ,12) ,4,6) ) ,-7) ,4) ) +transpose((transpose(X,-5) +X) ,7) ) +transpose(arpeggio(((arpeggio((X|X) ) +transpose(((transpose((transpose(X,4) +transpose(X,7) ) ,-7) +transpose(((((X+X) |(X+transpose(X,12) ) ) +transpose(transpose(X,-5) ,12) ) |arpeggio(((X+transpose(transpose(X,-7) ,4) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) ) ) ,4) ) +transpose(echo(((X+transpose(X,4) ) +transpose((X+X) ,7) ) ,4,6) ,7) ) ,4) ) +transpose(arpeggio((transpose(X,-5) +transpose(((X+transpose(X,12) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) ,12) ) ) ,7) ) ) ,7) ) ) ,12) ,-7) ) +transpose(((transpose((transpose(transpose((transpose(transpose(((((shuffle(step(X,12) ) +transpose(step(echo(X,4,6) ,12) ,4) ) +transpose(((X+transpose(X,7) ) +transpose((X+transpose(X,12) ) ,7) ) ,7) ) +transpose(transpose(transpose(transpose(X,-7) ,-5) ,-7) ,4) ) +transpose(transpose(((X+transpose((X+X) ,4) ) +transpose((X+transpose(X,7) ) ,7) ) ,-7) ,7) ) ,4) ,-7) |(transpose((step(shuffle(X) ,12) +transpose(((X+transpose((X+transpose(X,12) ) ,4) ) +transpose(echo(X,4,6) ,7) ) ,12) ) ,4) +transpose(transpose((X+transpose(X,7) ) ,-5) ,7) ) ) ,-7) ,4) +transpose(shuffle(transpose(((transpose(((X|X) |((X+X) |(X|X) ) ) ,4) +transpose((((transpose(X,4) +transpose(shuffle(X) ,4) ) +transpose(transpose(X,-5) ,7) ) +((arpeggio(X) +transpose(((transpose(X,-7) +transpose((X+transpose(X,7) ) ,12) ) +transpose((X+transpose(X,12) ) ,12) ) ,4) ) +transpose((X+transpose(X,12) ) ,7) ) ) ,12) ) +transpose(shuffle((transpose(shuffle(((X+transpose(X,4) ) +transpose(X,7) ) ) ,4) +transpose(((X+transpose(transpose(X,4) ,4) ) +transpose(echo(X,4,6) ,7) ) ,7) ) ) ,12) ) ,-7) ) ,4) ) ,4) +transpose(shuffle(transpose(((((transpose(transpose(X,4) ,-7) +transpose(((X|X) |transpose(X,-7) ) ,7) ) +transpose((transpose(X,-5) |shuffle(X) ) ,4) ) +transpose((transpose(X,-7) +shuffle(shuffle(X) ) ) ,7) ) |echo(transpose(echo(step(transpose((X+transpose(X,7) ) ,4) ,12) ,4,6) ,4) ,4,6) ) ,-5) ) ,4) ) +transpose(transpose(arpeggio(transpose((((step(X,12) +(((X+transpose(X,7) ) +transpose(X,4) ) +transpose(transpose(X,4) ,7) ) ) +transpose(((X|X) +transpose(X,12) ) ,12) ) +transpose((transpose(echo(X,4,6) ,4) |(X+transpose(transpose(X,-7) ,12) ) ) ,7) ) ,-7) ) ,4) ,7) ) ,12) ) ,7) ) +transpose(transpose((((transpose((transpose((transpose((((transpose((transpose(X,-5) +transpose(transpose(X,-5) ,7) ) ,-7) +transpose(transpose(((X+transpose(arpeggio(X) ,7) ) |X) ,-7) ,4) ) +transpose(transpose(transpose(transpose(X,4) ,4) ,-7) ,7) ) +(transpose(((X|X) +(X|X) ) ,4) +transpose(shuffle((((X+transpose(arpeggio(X) ,4) ) +transpose(arpeggio(X) ,7) ) +arpeggio(X) ) ) ,12) ) ) ,-5) |(transpose(((X+transpose(transpose(transpose(X,4) ,-5) ,7) ) +transpose((transpose(X,4) +transpose(((X|X) |X) ,7) ) ,-7) ) ,-5) +transpose(transpose((X|X) ,-5) ,4) ) ) ,-5) |(step(transpose(transpose((arpeggio(transpose((X+transpose(X,12) ) ,-5) ) +transpose((echo(X,4,6) +transpose(X,4) ) ,12) ) ,-7) ,4) ,12) |((transpose(shuffle(arpeggio(transpose((((X+transpose(X,7) ) +transpose(shuffle(X) ,4) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) ,4) ) ) ,-5) +transpose(echo((((transpose((transpose(transpose(X,-7) ,-7) |transpose(X,-5) ) ,-5) +transpose(arpeggio(step(echo(X,4,6) ,12) ) ,7) ) +transpose(step((transpose(((X|X) +transpose(X,12) ) ,4) +transpose(echo((step(X,12) |(X+X) ) ,4,6) ,7) ) ,12) ,7) ) +transpose((transpose((step(arpeggio(X) ,12) |(transpose(X,-7) |transpose(X,-7) ) ) ,-7) |((X+transpose(transpose(arpeggio(X) ,-5) ,4) ) +transpose(arpeggio(step(X,12) ) ,7) ) ) ,12) ) ,4,6) ,4) ) +transpose(step((((transpose((((X+transpose(X,7) ) +transpose((((X+transpose(X,7) ) +transpose(arpeggio(X) ,4) ) +transpose(X,7) ) ,4) ) +transpose((X|step(X,12) ) ,7) ) ,-7) +transpose((arpeggio(transpose((X+X) ,-5) ) +transpose(shuffle(X) ,-5) ) ,4) ) +transpose(transpose(step(X,12) ,4) ,7) ) |transpose(transpose((transpose(X,-5) +transpose(X,12) ) ,4) ,-5) ) ,12) ,7) ) ) ) ,-7) |((arpeggio((transpose(step((arpeggio((X+transpose(X,7) ) ) |(transpose(X,-7) +transpose((X|arpeggio(X) ) ,7) ) ) ,12) ,-5) +transpose((transpose(transpose(transpose(transpose(shuffle(((X+transpose((X|X) ,4) ) +transpose(X,7) ) ) ,4) ,-5) ,-7) ,-7) +transpose(arpeggio(((((X+transpose(X,4) ) +transpose(X,7) ) |((X+transpose(X,12) ) +transpose((X+transpose(X,12) ) ,12) ) ) +transpose(transpose(transpose(X,-5) ,-5) ,12) ) ) ,7) ) ,12) ) ) |arpeggio(((transpose(transpose(shuffle(transpose((X+transpose(X,12) ) ,-5) ) ,-5) ,-5) +transpose(echo(transpose(transpose(transpose(arpeggio(X) ,-7) ,-7) ,4) ,4,6) ,4) ) +transpose(((((((transpose(transpose(transpose(X,-7) ,-7) ,4) +transpose(((transpose(X,-5) +transpose(transpose(X,-7) ,7) ) +((transpose(X,-7) +transpose(X,4) ) +transpose((X+transpose(X,12) ) ,7) ) ) ,7) ) +transpose(transpose(transpose(X,-7) ,4) ,4) ) +transpose(transpose(step(transpose((X+X) ,4) ,12) ,-7) ,7) ) +shuffle(transpose(transpose(X,4) ,4) ) ) +transpose(transpose(transpose(((shuffle((((X+transpose(X,4) ) +transpose(X,7) ) |((X+transpose(X,4) ) +transpose(X,7) ) ) ) +transpose(transpose(((transpose((X+transpose(X,7) ) ,4) +transpose((transpose(step(X,12) ,-5) |transpose(X,-5) ) ,4) ) +transpose(transpose((transpose(X,4) +transpose(X,12) ) ,-7) ,7) ) ,-7) ,7) ) |transpose((step(transpose(X,4) ,12) +transpose(echo((X+transpose(X,12) ) ,4,6) ,7) ) ,-5) ) ,4) ,4) ,4) ) +transpose((transpose((transpose(step((X|X) ,12) ,-7) +transpose(((transpose(arpeggio(transpose(X,4) ) ,4) +transpose((X+transpose(X,7) ) ,4) ) +transpose((transpose(X,-5) +transpose((X|X) ,-5) ) ,7) ) ,12) ) ,-7) |(step(((X+transpose((X+transpose(X,12) ) ,4) ) +transpose(shuffle(X) ,7) ) ,12) |transpose((X+transpose(X,12) ) ,4) ) ) ,7) ) ,7) ) ) ) +transpose((shuffle(transpose(((transpose(transpose(X,-5) ,4) +transpose(((((transpose(transpose(X,4) ,-5) +transpose(transpose(X,4) ,4) ) +transpose((transpose(X,-5) |(X|X) ) ,7) ) +transpose((X|(echo(X,4,6) |step(X,12) ) ) ,4) ) +transpose((step(X,12) |(X|X) ) ,7) ) ,12) ) +transpose(((arpeggio(transpose(X,-5) ) +transpose(echo(transpose(X,4) ,4,6) ,4) ) +transpose(X,7) ) ,-7) ) ,-7) ) |((((transpose(X,-7) +transpose(transpose(transpose(X,-5) ,-7) ,7) ) +transpose(transpose(transpose(transpose((X|X) ,4) ,-5) ,4) ,7) ) |shuffle(((arpeggio(transpose(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-7) ,-7) ) +transpose(transpose(((X|step(X,12) ) +transpose((X+transpose(step(X,12) ,7) ) ,7) ) ,4) ,4) ) +transpose(((step(transpose(X,4) ,12) +transpose(X,4) ) +transpose(shuffle(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-5) ) ,7) ) ,7) ) ) ) |transpose(transpose(transpose(transpose(((shuffle(((X+transpose(X,4) ) +transpose(X,7) ) ) +transpose(shuffle(X) ,12) ) +transpose((((X|X) +transpose((X+transpose(X,12) ) ,4) ) +transpose(X,7) ) ,12) ) ,4) ,-7) ,4) ,4) ) ) ,7) ) ) +transpose(step(arpeggio(transpose(transpose(transpose((arpeggio(transpose((transpose(transpose(X,4) ,-5) |(X|X) ) ,-5) ) +transpose(transpose((step((((transpose(X,4) +transpose(transpose(X,-7) ,12) ) +transpose(transpose((X|X) ,-5) ,4) ) +transpose(X,7) ) ,12) +transpose(X,7) ) ,4) ,7) ) ,4) ,-7) ,-7) ) ,12) ,4) ) +transpose((echo(transpose(transpose((arpeggio(step((X|X) ,12) ) +transpose(transpose(((transpose((arpeggio(X) |arpeggio((X+transpose(X,12) ) ) ) ,4) +transpose(shuffle(X) ,4) ) +transpose(transpose(transpose(step(X,12) ,-7) ,4) ,7) ) ,4) ,12) ) ,4) ,-5) ,4,6) +transpose((arpeggio(((transpose(shuffle((X+transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ) ) ,4) +transpose(transpose(((transpose(X,-5) +transpose((transpose(X,4) |transpose(transpose(X,4) ,-5) ) ,12) ) |transpose(((X+transpose(X,7) ) +transpose((X+X) ,12) ) ,-7) ) ,4) ,4) ) +transpose(transpose(shuffle(step((shuffle(X) +transpose((X|echo(X,4,6) ) ,7) ) ,12) ) ,4) ,7) ) ) |(transpose(transpose(shuffle(transpose(X,4) ) ,4) ,-7) +(((X|X) |X) +transpose(transpose((shuffle(X) +transpose(echo(X,4,6) ,12) ) ,-5) ,7) ) ) ) ,12) ) ,7) ) ,-7) ,4) ) +transpose(transpose(transpose((transpose((((transpose((step(((transpose(X,4) +transpose((X+transpose(X,12) ) ,4) ) +transpose((X|((X+transpose(X,4) ) +transpose(X,7) ) ) ,7) ) ,12) +transpose(step(transpose(echo(step(X,12) ,4,6) ,4) ,12) ,7) ) ,-7) +transpose(((shuffle((((((X+transpose(X,7) ) +transpose(transpose(X,-5) ,4) ) +transpose((X+transpose(X,7) ) ,7) ) +transpose(((X+transpose(step(X,12) ,4) ) +transpose(step(X,12) ,7) ) ,4) ) +transpose(X,7) ) ) +transpose(transpose(shuffle(X) ,4) ,-5) ) +transpose(((step(transpose(X,4) ,12) +transpose(shuffle(transpose(echo(X,4,6) ,-5) ) ,12) ) +transpose(transpose(transpose(X,4) ,4) ,-7) ) ,7) ) ,4) ) +transpose((((((((((arpeggio((arpeggio(X) +(X|X) ) ) +transpose(transpose(X,-7) ,4) ) +transpose(X,7) ) |(transpose(X,-5) +transpose(X,12) ) ) +transpose(echo(X,4,6) ,4) ) +transpose(shuffle(transpose(transpose(shuffle(X) ,4) ,4) ) ,7) ) +transpose(step(transpose(transpose(step(transpose(X,-5) ,12) ,4) ,-5) ,12) ,12) ) +transpose(((transpose(transpose(echo(arpeggio(((X+transpose(X,4) ) +transpose(X,7) ) ) ,4,6) ,4) ,4) +transpose(((transpose((arpeggio(transpose(X,4) ) |transpose(shuffle(X) ,-7) ) ,4) +transpose(((arpeggio(transpose((X+transpose(X,12) ) ,-7) ) +transpose((X+step(X,12) ) ,4) ) +transpose((((X+transpose(X,12) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) +transpose((X|X) ,7) ) ,7) ) ,4) ) +transpose(((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(echo(X,4,6) ,12) ) +(transpose(X,-7) +transpose(transpose(X,-7) ,12) ) ) ,7) ) ,4) ) +transpose(transpose(shuffle((X+transpose(X,12) ) ) ,4) ,7) ) ,4) ) +transpose(transpose(transpose(step(X,12) ,-5) ,-7) ,7) ) +transpose(echo(shuffle(echo((transpose(transpose(transpose(echo(X,4,6) ,-5) ,4) ,-7) +transpose(arpeggio(X) ,4) ) ,4,6) ) ,4,6) ,12) ) ,7) ) |(((((transpose(arpeggio(X) ,-5) +transpose((transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-5) |transpose(X,-5) ) ,4) ) +transpose((((X+transpose(X,12) ) |transpose(X,-7) ) +transpose((X+transpose((X|X) ,7) ) ,12) ) ,7) ) +transpose(echo(((((((((X+transpose(X,7) ) +transpose(X,4) ) +transpose((X+transpose(X,7) ) ,7) ) +transpose(((X+transpose(X,7) ) +X) ,4) ) +transpose((transpose(X,-7) +transpose(transpose(X,-7) ,12) ) ,7) ) +transpose(transpose((X+transpose(transpose(X,4) ,12) ) ,-5) ,7) ) +transpose((X+transpose((X|X) ,12) ) ,12) ) |transpose((((X|X) +echo(X,4,6) ) +transpose(transpose(transpose(X,-5) ,-5) ,7) ) ,4) ) ,4,6) ,4) ) +transpose(((echo(X,4,6) +transpose(((step((transpose(X,4) +transpose(transpose(X,4) ,7) ) ,12) +transpose((X+(X|X) ) ,4) ) +transpose(transpose(step(X,12) ,4) ,7) ) ,4) ) +transpose((transpose(transpose(shuffle(transpose(X,-7) ) ,-7) ,4) +transpose(transpose((X+transpose(X,7) ) ,4) ,7) ) ,7) ) ,7) ) +((((X+transpose(X,4) ) +transpose(X,7) ) +transpose((X+transpose((X+transpose(X,12) ) ,7) ) ,7) ) |(((shuffle(X) +transpose(X,4) ) +transpose(X,7) ) +transpose((X+transpose(step(X,12) ,12) ) ,12) ) ) ) ) ,-7) |transpose(echo(arpeggio(shuffle(transpose(((transpose(step(X,12) ,-5) +transpose(step(transpose((arpeggio(X) +transpose(X,-5) ) ,-5) ,12) ,12) ) +transpose(echo(transpose(((transpose(X,-5) +transpose(X,4) ) +transpose(arpeggio(X) ,7) ) ,-7) ,4,6) ,12) ) ,-7) ) ) ,4,6) ,-7) ) ,-7) ,-7) ,7) ) ,7) ) ,-7)
random seed used was 4

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