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:
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Phrase for X:
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After 20 generations the expression "X" became this:
transpose((shuffle(((((transpose(transpose((shuffle((transpose(transpose((X+X) ,4) ,-5) |(transpose(((X+transpose(X,4) ) +transpose((X+transpose(X,12) ) ,7) ) ,-5) +step((X+transpose(X,7) ) ,12) ) ) ) +(((transpose(arpeggio((X+X) ) ,-5) +transpose(echo(step((X+transpose(X,12) ) ,12) ,4,6) ,7) ) +transpose((echo(transpose(X,-5) ,4,6) +transpose(transpose(transpose(echo(X,4,6) ,-5) ,4) ,12) ) ,4) ) +transpose((((shuffle(transpose(transpose(X,4) ,-5) ) +arpeggio((((transpose(X,4) +(X+transpose(X,7) ) ) +(transpose(X,4) +transpose(X,-7) ) ) +arpeggio((X+X) ) ) ) ) +transpose((arpeggio((arpeggio(X) |transpose(X,-5) ) ) |X) ,4) ) +transpose(((transpose((step(X,12) +transpose((arpeggio(X) +X) ,7) ) ,-5) +transpose(shuffle((X|X) ) ,7) ) +(transpose(X,4) +transpose(transpose(X,-7) ,-5) ) ) ,7) ) ,7) ) ) ,-5) ,4) +transpose((arpeggio((transpose(X,-5) |(transpose((X+X) ,-7) +(shuffle(X) +transpose(step(X,12) ,7) ) ) ) ) +transpose((((arpeggio((step(transpose(step(((X+transpose((X|X) ,4) ) +transpose((X+transpose(X,12) ) ,7) ) ,12) ,-7) ,12) |((((transpose(X,4) +transpose((X+X) ,4) ) +transpose((X|X) ,7) ) +transpose(transpose(step(X,12) ,-7) ,12) ) +(shuffle(X) +X) ) ) ) +transpose(transpose((X+X) ,4) ,4) ) +transpose(transpose(transpose(transpose(transpose(transpose(X,4) ,4) ,-5) ,4) ,-5) ,7) ) +transpose((transpose(echo((X+transpose(echo((X+X) ,4,6) ,12) ) ,4,6) ,4) |(((echo(step(X,12) ,4,6) +(X+((X+transpose(X,7) ) +transpose((X+X) ,7) ) ) ) |((X+transpose((X+X) ,12) ) +transpose(shuffle(X) ,-7) ) ) +transpose(echo(transpose(arpeggio(X) ,4) ,4,6) ,12) ) ) ,12) ) ,7) ) ,-7) ) +transpose((((transpose(arpeggio((transpose((arpeggio(X) +transpose(transpose(X,-5) ,7) ) ,-5) |(X|((X+transpose(X,4) ) +transpose((X+transpose(X,12) ) ,7) ) ) ) ) ,-7) +(arpeggio((((X+transpose(X,7) ) |(X|X) ) +((X+transpose(X,4) ) +transpose(X,7) ) ) ) +transpose(echo(((((step(X,12) +transpose(transpose(X,-5) ,4) ) +transpose(transpose(X,4) ,7) ) +transpose((X+X) ,4) ) +transpose(((arpeggio(X) +transpose(step(X,12) ,4) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) ,7) ) ,4,6) ,-5) ) ) |step(((((((X|X) +transpose((X+X) ,12) ) +(((X+transpose(X,4) ) +transpose(X,7) ) +arpeggio(X) ) ) |shuffle((((X|X) +transpose(transpose(X,4) ,7) ) |((step(X,12) +transpose(shuffle(X) ,4) ) +transpose((X|X) ,7) ) ) ) ) +(transpose(transpose(X,-7) ,-5) +echo((X+transpose(((X|X) +transpose(transpose(X,-5) ,7) ) ,12) ) ,4,6) ) ) +transpose(transpose(transpose((X+transpose(echo(echo(X,4,6) ,4,6) ,7) ) ,-7) ,-5) ,7) ) ,12) ) +transpose((transpose((arpeggio(((X+transpose(transpose(X,-5) ,12) ) +transpose((X+transpose(echo(X,4,6) ,7) ) ,12) ) ) |(transpose(transpose(X,-7) ,-5) +(((X+transpose(X,12) ) +transpose(transpose(X,-5) ,4) ) +transpose((X+transpose(X,7) ) ,7) ) ) ) ,-7) |transpose((step((((((X+transpose(X,7) ) |(X+transpose(X,7) ) ) +transpose(X,-5) ) +transpose(arpeggio(echo(X,4,6) ) ,4) ) +transpose(((((((X+transpose(X,4) ) +transpose(X,7) ) +X) +transpose((X+transpose(X,7) ) ,4) ) +transpose(transpose(X,-5) ,7) ) |(X+transpose(X,12) ) ) ,7) ) ,12) +transpose(shuffle(step(transpose(X,4) ,12) ) ,4) ) ,-7) ) ,7) ) ,4) ) +transpose((transpose(shuffle(echo(((transpose(((transpose(X,-5) +arpeggio(X) ) +transpose((transpose(X,-5) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) ,12) ) ,4) +transpose(arpeggio(transpose(step((X+X) ,12) ,-7) ) ,4) ) +transpose(transpose((shuffle(transpose((X|X) ,4) ) +transpose((step(X,12) +transpose(X,4) ) ,7) ) ,4) ,7) ) ,4,6) ) ,-7) +transpose(transpose(((transpose(step(arpeggio((step(transpose(arpeggio(X) ,-7) ,12) +step(shuffle((X+X) ) ,12) ) ) ,12) ,4) +transpose(transpose((((step(arpeggio(echo((((X+transpose(X,12) ) +X) +arpeggio((X+transpose(X,12) ) ) ) ,4,6) ) ,12) +echo((((transpose(transpose(X,-7) ,-5) |(((X+X) +transpose(shuffle(X) ,4) ) +transpose(transpose(X,4) ,7) ) ) +transpose((((X|X) +transpose((echo(X,4,6) +X) ,4) ) +transpose(transpose(transpose((X|X) ,-5) ,4) ,7) ) ,7) ) +transpose((((arpeggio(X) +transpose(X,4) ) +transpose(X,7) ) +(transpose((X+X) ,4) +(X|X) ) ) ,4) ) ,4,6) ) +transpose((transpose((transpose(transpose(X,-7) ,4) +((transpose(X,-5) +transpose(X,12) ) +transpose((arpeggio((X|X) ) |(X+transpose(X,12) ) ) ,12) ) ) ,-5) +transpose((transpose(transpose(X,-7) ,-7) |transpose(((transpose(transpose((X|X) ,-7) ,-7) +transpose((transpose(step(X,12) ,-5) +transpose((transpose(X,4) |(X+transpose(X,12) ) ) ,7) ) ,4) ) +transpose(echo(transpose(X,4) ,4,6) ,7) ) ,4) ) ,-5) ) ,4) ) +transpose((transpose((((X+X) +X) +transpose((X+transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ) ,7) ) ,4) |(transpose(transpose(transpose(X,-5) ,-5) ,-5) +transpose(transpose(shuffle(transpose(X,-7) ) ,4) ,12) ) ) ,7) ) ,-5) ,4) ) +transpose((arpeggio(transpose(step(step(step(transpose(step(arpeggio((echo(X,4,6) +transpose(X,4) ) ) ,12) ,4) ,12) ,12) ,12) ,4) ) +transpose((((transpose(((echo(transpose(X,4) ,4,6) +transpose(((X|X) +transpose(echo(X,4,6) ,12) ) ,4) ) +transpose((X+transpose((X+transpose(X,7) ) ,12) ) ,7) ) ,4) |transpose(transpose((transpose(X,-7) +X) ,-5) ,-7) ) +shuffle(shuffle(transpose(transpose(X,4) ,-5) ) ) ) +transpose(shuffle(echo(((((X+transpose(X,12) ) +transpose(echo(X,4,6) ,12) ) +transpose((((X+X) +transpose(transpose(X,4) ,4) ) +transpose(X,7) ) ,4) ) +transpose((X|(X+transpose(X,12) ) ) ,7) ) ,4,6) ) ,12) ) ,7) ) ,7) ) ,4) ,12) ) ,7) ) |transpose(arpeggio(((((transpose(((transpose(transpose((echo(transpose(transpose((X+transpose(X,7) ) ,-5) ,-7) ,4,6) +transpose(transpose((X|X) ,-5) ,12) ) ,-7) ,-5) +transpose(arpeggio((((transpose(X,-5) +transpose(X,12) ) +transpose((arpeggio(transpose(X,4) ) |transpose(transpose(transpose(X,-5) ,-7) ,4) ) ,4) ) +transpose(X,7) ) ) ,4) ) +transpose(((((transpose(X,-5) +echo(step(X,12) ,4,6) ) +transpose(transpose(X,-5) ,7) ) +((X|transpose(X,-7) ) +(transpose((X+transpose(X,12) ) ,4) +((X+transpose(X,4) ) +transpose(X,7) ) ) ) ) +transpose((((X|X) +transpose(shuffle(X) ,12) ) +transpose(((X|X) |(transpose(X,-7) +transpose((X+X) ,4) ) ) ,12) ) ,7) ) ,7) ) ,-7) +transpose((transpose(transpose((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(transpose(((X+transpose((X+X) ,4) ) +transpose(X,7) ) ,-7) ,7) ) ,4) ,-7) |(((transpose((transpose(transpose(((X|X) +X) ,-5) ,-5) |(transpose(X,-5) |(transpose(echo(X,4,6) ,4) +transpose(step(X,12) ,7) ) ) ) ,-5) +transpose(((shuffle((transpose(X,-5) +transpose(X,12) ) ) +(((transpose(X,-5) |(X+transpose(X,12) ) ) +transpose(X,12) ) +transpose((((X|X) |(X+transpose(X,12) ) ) +step(transpose(X,4) ,12) ) ,12) ) ) +transpose(transpose(((X+transpose(shuffle(X) ,12) ) +transpose(step(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ,7) ) ,4) ,12) ) ,4) ) +transpose(arpeggio(((X+X) |(X+transpose((X+transpose(X,12) ) ,12) ) ) ) ,7) ) +transpose(transpose(transpose(shuffle(X) ,-7) ,-7) ,4) ) ) ,7) ) +transpose(arpeggio(transpose(transpose(transpose(((arpeggio(step(transpose(X,-5) ,12) ) +transpose(((X|X) |step(X,12) ) ,12) ) +transpose(((transpose(X,4) |transpose(transpose(X,-7) ,-7) ) +((echo(((X+transpose(X,4) ) +transpose(X,7) ) ,4,6) +arpeggio((X+transpose(X,7) ) ) ) |((X+transpose((X|X) ,7) ) +transpose(X,12) ) ) ) ,12) ) ,-5) ,4) ,-7) ) ,4) ) +transpose((transpose((((X+transpose(X,7) ) +(X|X) ) +transpose(arpeggio(arpeggio((X+step(X,12) ) ) ) ,12) ) ,-7) |transpose((arpeggio(X) +(X|arpeggio(arpeggio(X) ) ) ) ,-7) ) ,7) ) +((transpose((transpose(((transpose(((X+transpose((X|X) ,4) ) +transpose(((X|X) +transpose(X,7) ) ,7) ) ,4) |(transpose((X+X) ,-5) |((X+transpose(X,4) ) +transpose(X,7) ) ) ) +transpose(transpose(transpose(X,-5) ,-7) ,-5) ) ,4) +((arpeggio((X+X) ) |transpose((X+X) ,-5) ) |transpose(shuffle(X) ,-7) ) ) ,4) +transpose(((transpose(((echo(transpose(((X+transpose(X,12) ) +transpose(X,12) ) ,4) ,4,6) +((X+transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ) +transpose((X|X) ,7) ) ) +transpose(((echo(((X+transpose(transpose(X,-5) ,7) ) +transpose((X|X) ,7) ) ,4,6) +transpose(transpose((echo(transpose(X,-7) ,4,6) |shuffle(((X+transpose(X,12) ) +transpose(X,12) ) ) ) ,4) ,4) ) +transpose(transpose(((X+transpose(X,7) ) +transpose(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-7) ,7) ) ,-5) ,7) ) ,7) ) ,-5) +transpose(transpose(((((echo(step(X,12) ,4,6) +transpose(echo(shuffle(X) ,4,6) ,12) ) +transpose(arpeggio((X+(X+transpose(transpose(X,-5) ,12) ) ) ) ,4) ) +transpose(transpose(X,4) ,7) ) +(transpose((X+X) ,-5) +(arpeggio(transpose(shuffle(X) ,4) ) +transpose(X,12) ) ) ) ,4) ,4) ) +transpose(transpose((((transpose((transpose(step(X,12) ,4) +shuffle((X+X) ) ) ,-7) +transpose(transpose((((X+X) +transpose(transpose((X|X) ,4) ,7) ) +step(arpeggio((X|X) ) ,12) ) ,-7) ,4) ) +transpose((transpose((((X|X) |transpose(X,-5) ) +transpose(transpose(X,4) ,7) ) ,-5) |(X+transpose(X,7) ) ) ,7) ) |step((transpose(shuffle(transpose(X,4) ) ,-7) +transpose(((transpose(X,-7) +(X|X) ) +transpose((X+transpose((X+transpose(X,7) ) ,12) ) ,7) ) ,12) ) ,12) ) ,-7) ,7) ) ,7) ) +transpose((transpose(transpose((((echo(((X+transpose(X,7) ) +transpose((X+transpose(X,7) ) ,12) ) ,4,6) |transpose(X,-7) ) +transpose((arpeggio(X) +transpose((X+transpose(X,12) ) ,7) ) ,7) ) +transpose(step(transpose((X+X) ,4) ,12) ,12) ) ,-5) ,4) +transpose(((((((((X|(X+transpose(X,12) ) ) |arpeggio(transpose(X,-5) ) ) +transpose(((arpeggio(X) |X) +transpose(step(transpose(X,-5) ,12) ,12) ) ,4) ) +transpose(arpeggio(echo(transpose(transpose(X,4) ,4) ,4,6) ) ,7) ) +transpose((arpeggio(transpose(shuffle(X) ,4) ) |transpose(shuffle(step(X,12) ) ,-7) ) ,4) ) +transpose(((arpeggio(transpose(X,-5) ) |echo(transpose(X,-7) ,4,6) ) +step(X,12) ) ,7) ) +transpose(((transpose(((((X+transpose(X,7) ) +transpose(X,4) ) +transpose((X+X) ,7) ) +transpose(transpose(((X+transpose(X,7) ) +transpose(shuffle(X) ,7) ) ,4) ,7) ) ,-7) |step(echo(transpose(X,-5) ,4,6) ,12) ) +transpose((step(transpose((arpeggio(X) |X) ,-7) ,12) +transpose(transpose(step((X+(X+X) ) ,12) ,-7) ,12) ) ,12) ) ,4) ) +transpose(((echo(transpose((((X+transpose(X,4) ) +transpose(X,7) ) +transpose((X|X) ,12) ) ,-7) ,4,6) +transpose(step(echo(transpose((X+transpose(X,12) ) ,-5) ,4,6) ,12) ,4) ) +transpose((((((X+X) +transpose(step(X,12) ,12) ) |((X|X) +transpose(step(X,12) ,7) ) ) +transpose(transpose(X,-7) ,4) ) +transpose(X,7) ) ,7) ) ,7) ) ,12) ) ,12) ) ) ) ,-5) ) ) +transpose(((transpose((transpose(transpose((arpeggio(step(((step(transpose(transpose((((X|X) +transpose(X,4) ) +transpose(step(X,12) ,7) ) ,4) ,-7) ,12) |(step(transpose((X+transpose(X,7) ) ,4) ,12) +step(((X+transpose(arpeggio(shuffle(transpose(X,4) ) ) ,4) ) +transpose(((X+transpose(X,12) ) +transpose(transpose(X,-5) ,4) ) ,7) ) ,12) ) ) +arpeggio(((((((X|X) +transpose(X,4) ) +transpose(X,7) ) +transpose(shuffle(X) ,12) ) +(transpose(transpose(X,-5) ,-7) +((X+transpose(echo(X,4,6) ,4) ) +transpose(transpose(X,4) ,7) ) ) ) +((transpose((arpeggio(X) |(((X+X) +transpose(X,4) ) +transpose(X,7) ) ) ,-7) +transpose(transpose(step((X+transpose(step(X,12) ,7) ) ,12) ,-7) ,4) ) +transpose(arpeggio(((X|X) |arpeggio(X) ) ) ,7) ) ) ) ) ,12) ) +(shuffle((transpose(step(X,12) ,-5) +(transpose(step(transpose(transpose(X,-5) ,4) ,12) ,4) +transpose(X,-7) ) ) ) +transpose(transpose((transpose(echo(shuffle(arpeggio(X) ) ,4,6) ,-7) +transpose(transpose((shuffle(X) +transpose(transpose(X,-5) ,12) ) ,4) ,7) ) ,-5) ,12) ) ) ,-5) ,-7) |transpose(step(((arpeggio(((transpose(((transpose(transpose(X,-5) ,4) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ) +transpose(((transpose(transpose(X,4) ,-5) +transpose((step(echo(X,4,6) ,12) +transpose(((X+X) +transpose(X,7) ) ,7) ) ,4) ) +transpose(((X+transpose(X,12) ) |step(X,12) ) ,7) ) ,7) ) ,-7) +transpose(arpeggio(((((arpeggio((X|X) ) |echo(shuffle(X) ,4,6) ) |(((X+transpose((echo(X,4,6) +transpose(transpose(X,-5) ,7) ) ,4) ) +transpose(transpose(X,4) ,7) ) +transpose(arpeggio(transpose((X|X) ,-5) ) ,12) ) ) +transpose(transpose(shuffle(((X|X) +step(X,12) ) ) ,4) ,4) ) +transpose(transpose(X,4) ,7) ) ) ,4) ) +transpose(transpose((((step(X,12) +transpose((X|X) ,4) ) +transpose((X|(X+X) ) ,7) ) +step(transpose(X,4) ,12) ) ,4) ,7) ) ) +transpose(((transpose(arpeggio((transpose(X,-5) +transpose(arpeggio(step(X,12) ) ,7) ) ) ,4) +transpose((shuffle((transpose(transpose(step((X|transpose(X,-7) ) ,12) ,4) ,4) +shuffle(echo((X|(X|X) ) ,4,6) ) ) ) +((((X+transpose(X,4) ) +transpose(X,7) ) +X) +(((X|X) +transpose(transpose(X,-5) ,4) ) +transpose(X,7) ) ) ) ,4) ) +transpose((transpose(transpose(transpose(X,4) ,4) ,-7) +(transpose(transpose((transpose(X,-5) +transpose(X,7) ) ,-5) ,-5) +transpose(transpose(shuffle(step(arpeggio((X|X) ) ,12) ) ,-5) ,4) ) ) ,7) ) ,12) ) +(((transpose((transpose((X+transpose(X,7) ) ,4) +transpose(transpose(((transpose(X,4) +transpose(X,4) ) +transpose(transpose(X,-7) ,7) ) ,4) ,7) ) ,-5) +transpose(((transpose(X,4) |transpose(transpose(X,-7) ,-7) ) +transpose((transpose(((X+((X+transpose(X,4) ) +transpose(X,7) ) ) +(X|(X|X) ) ) ,-7) +((step(step(X,12) ,12) +transpose(transpose(((X+X) |transpose(X,4) ) ,-7) ,12) ) |((arpeggio(X) +transpose(shuffle(X) ,12) ) +((X+transpose(X,4) ) +transpose(X,7) ) ) ) ) ,12) ) ,4) ) +transpose(echo(((arpeggio((X|X) ) |(((X|X) +transpose((X+transpose(X,12) ) ,4) ) +transpose(X,7) ) ) +transpose(((echo(transpose(transpose(X,4) ,-7) ,4,6) +transpose(echo(arpeggio(((X+transpose(X,4) ) +transpose(X,7) ) ) ,4,6) ,4) ) +transpose((arpeggio(X) +transpose((X+X) ,-5) ) ,7) ) ,12) ) ,4,6) ,7) ) +transpose(((((transpose(transpose(shuffle((X+transpose(X,7) ) ) ,-5) ,4) |(transpose(X,-7) +(transpose(X,-5) +transpose((((X+transpose(X,4) ) +transpose(X,7) ) +X) ,12) ) ) ) +transpose(transpose((echo((X+X) ,4,6) +(X+step(X,12) ) ) ,-5) ,-5) ) +transpose(arpeggio(transpose((transpose(X,-5) +shuffle(X) ) ,-5) ) ,7) ) +arpeggio((transpose(transpose((shuffle(transpose(X,4) ) +X) ,-7) ,4) +transpose(transpose(shuffle((X+transpose(X,7) ) ) ,4) ,-5) ) ) ) ,7) ) ) ,12) ,-5) ) ,-5) +transpose((arpeggio((((((((((transpose(((X|X) +X) ,4) +((X+transpose(X,7) ) +transpose((X+transpose(X,7) ) ,7) ) ) +(arpeggio(X) +transpose(transpose(transpose(transpose(X,4) ,4) ,-5) ,12) ) ) +transpose(echo(transpose(echo(X,4,6) ,4) ,4,6) ,7) ) +transpose(transpose((transpose(transpose(X,-5) ,4) +transpose(shuffle(arpeggio(X) ) ,12) ) ,-7) ,7) ) +transpose(step((shuffle((shuffle(X) |echo(transpose(X,4) ,4,6) ) ) +transpose(transpose(transpose(((X|X) |X) ,-7) ,4) ,-5) ) ,12) ,4) ) +transpose(((transpose(X,-7) +transpose((shuffle(X) +X) ,-5) ) |transpose(((X+transpose(transpose(transpose((X|X) ,-5) ,-5) ,4) ) +transpose(transpose((X+X) ,-5) ,7) ) ,4) ) ,7) ) |(((step(transpose((transpose(transpose(shuffle(X) ,-7) ,-5) +(((shuffle(X) |(X|(X+X) ) ) +transpose(step(((X+transpose(X,12) ) |X) ,12) ,4) ) +transpose(transpose(X,-5) ,7) ) ) ,-7) ,12) +transpose(((transpose((echo(X,4,6) |step(X,12) ) ,-7) |shuffle(((shuffle(X) |(X+X) ) |arpeggio((X+transpose(X,12) ) ) ) ) ) |transpose(step(arpeggio(X) ,12) ,4) ) ,4) ) +transpose((echo(echo((((transpose(X,-7) |(X+transpose(X,7) ) ) +transpose(transpose(transpose((X+transpose(X,7) ) ,-7) ,-5) ,7) ) |(transpose(shuffle(X) ,-7) +step(X,12) ) ) ,4,6) ,4,6) +transpose(transpose(transpose(transpose((X+X) ,-7) ,-5) ,4) ,4) ) ,7) ) +transpose(transpose(echo(((transpose(transpose((shuffle(X) +transpose((X+transpose(X,7) ) ,12) ) ,4) ,-5) +transpose(echo((X+transpose(X,7) ) ,4,6) ,4) ) +transpose(arpeggio((X+transpose(((X+X) +transpose((X|X) ,12) ) ,7) ) ) ,12) ) ,4,6) ,4) ,12) ) ) +transpose(transpose(transpose(((transpose(transpose((X|X) ,4) ,-5) |(transpose((step(X,12) +transpose((X+X) ,7) ) ,-5) |transpose((X+X) ,4) ) ) +shuffle(transpose(transpose(X,-7) ,-7) ) ) ,-7) ,-5) ,12) ) |echo(((transpose(((((transpose(X,-5) |echo(X,4,6) ) +transpose(arpeggio(transpose(X,4) ) ,7) ) +transpose(step(arpeggio(transpose(shuffle(X) ,-7) ) ,12) ,4) ) +transpose(transpose(X,-7) ,7) ) ,-7) +step((echo(transpose(shuffle(X) ,4) ,4,6) +transpose(transpose(transpose((X+transpose(X,7) ) ,4) ,-7) ,12) ) ,12) ) +transpose(step(transpose((X+transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ) ,-5) ,12) ,7) ) ,4,6) ) ) +transpose(((step(((transpose(((step(transpose(X,4) ,12) +transpose(transpose(shuffle(transpose(X,-7) ) ,-5) ,7) ) +transpose(shuffle(transpose(X,-7) ) ,7) ) ,-5) +transpose(step(arpeggio(arpeggio((X|(transpose(X,4) +transpose(shuffle(X) ,7) ) ) ) ) ,12) ,4) ) |transpose(transpose((transpose(shuffle(echo(X,4,6) ) ,4) +transpose(transpose((arpeggio(transpose(X,4) ) +transpose(transpose(X,-7) ,12) ) ,-5) ,7) ) ,4) ,4) ) ,12) +transpose((arpeggio(transpose(((transpose(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ,4) +(((X+X) |((X+transpose(X,4) ) +transpose(X,7) ) ) +X) ) +((transpose(transpose(((transpose(X,-7) +transpose(X,4) ) +transpose(transpose(X,-5) ,7) ) ,4) ,4) +((transpose(transpose(X,4) ,-5) +transpose(X,7) ) |step(((X+X) +X) ,12) ) ) +transpose(transpose((((X|(X|X) ) +transpose((arpeggio(X) |transpose(X,4) ) ,7) ) |(X|step(echo(X,4,6) ,12) ) ) ,-7) ,7) ) ) ,-5) ) +step((((((transpose(transpose(X,-5) ,-5) +transpose((((transpose(transpose(((X+transpose(X,4) ) +transpose(step(X,12) ,7) ) ,-7) ,4) +transpose((X+(transpose(((X+transpose(X,12) ) +transpose(X,12) ) ,-7) +(X+transpose((X+transpose(X,7) ) ,7) ) ) ) ,12) ) +transpose((arpeggio((X+(X+transpose(X,12) ) ) ) |(echo(step(X,12) ,4,6) +transpose(X,4) ) ) ,4) ) +transpose(transpose(shuffle(X) ,-7) ,7) ) ,4) ) +transpose(echo(shuffle(arpeggio(transpose(X,-5) ) ) ,4,6) ,7) ) +transpose(transpose((((X+echo((X+transpose(X,7) ) ,4,6) ) |transpose(step(X,12) ,4) ) |(transpose(transpose(X,4) ,4) |(transpose(transpose(X,4) ,4) +X) ) ) ,4) ,4) ) +transpose(shuffle(arpeggio(transpose(arpeggio(((transpose(X,-5) |transpose(X,4) ) +step(transpose(X,4) ,12) ) ) ,-5) ) ) ,7) ) +transpose(transpose((shuffle(transpose((X+transpose((X+X) ,7) ) ,-5) ) +transpose(step(shuffle(transpose(X,-7) ) ,12) ,4) ) ,-5) ,12) ) ,12) ) ,7) ) +transpose(echo(((shuffle((transpose(((step(transpose(X,-7) ,12) +transpose(transpose(((shuffle(X) +transpose((X+X) ,4) ) +transpose(X,7) ) ,4) ,7) ) |shuffle(shuffle(X) ) ) ,4) +transpose((step(transpose(((echo(X,4,6) |X) |(X+transpose(X,12) ) ) ,-5) ,12) |transpose(transpose(transpose((echo(X,4,6) +transpose(X,7) ) ,-5) ,-7) ,-5) ) ,12) ) ) +transpose(echo(arpeggio((shuffle(((((X+((X+transpose(X,4) ) +transpose(X,7) ) ) +transpose(step(transpose(X,-5) ,12) ,12) ) +transpose(((shuffle(X) +transpose(X,12) ) |arpeggio(arpeggio((X|X) ) ) ) ,7) ) |step((transpose(X,-7) +shuffle(X) ) ,12) ) ) |(transpose(((X+X) +((X+X) +(X+transpose(X,12) ) ) ) ,-5) +(((transpose(X,-7) +transpose(X,-5) ) +transpose(transpose((((X|transpose(X,4) ) +transpose(echo((X+transpose(X,7) ) ,4,6) ,4) ) +transpose(transpose((X+X) ,-5) ,7) ) ,-5) ,12) ) |(step(echo(transpose(X,-7) ,4,6) ,12) |transpose(transpose(transpose((((X+transpose(X,4) ) +transpose(X,7) ) |(X|X) ) ,4) ,-7) ,-7) ) ) ) ) ) ,4,6) ,4) ) +transpose(transpose((transpose((((arpeggio(X) |(transpose(X,4) |X) ) +transpose((((arpeggio(X) +transpose(((X+transpose(transpose(X,-5) ,4) ) +transpose(X,7) ) ,4) ) +transpose(transpose(transpose(X,-5) ,-7) ,7) ) |transpose(((X+transpose(X,4) ) +transpose(shuffle(X) ,7) ) ,-5) ) ,12) ) +transpose(step(transpose((X+X) ,-5) ,12) ,7) ) ,-5) +transpose(transpose(echo(transpose(echo(X,4,6) ,-5) ,4,6) ,-7) ,7) ) ,-7) ,7) ) ,4,6) ,12) ) ,12) ) ,4) ) +transpose(shuffle((transpose(step(transpose((((arpeggio(X) +(X+X) ) +transpose(echo(X,4,6) ,12) ) +((transpose(X,-7) +transpose(((X|X) +((X+transpose(X,4) ) +transpose(X,7) ) ) ,4) ) +transpose(transpose(X,-5) ,7) ) ) ,-5) ,12) ,4) +transpose(((arpeggio((((((transpose(shuffle(X) ,-5) +transpose(transpose(transpose(transpose(X,4) ,-5) ,-5) ,4) ) +transpose(arpeggio(((step(X,12) +transpose(((X+transpose((X+X) ,4) ) +transpose(shuffle(X) ,7) ) ,12) ) +(transpose(X,-5) +((X|X) +transpose((X+transpose(X,7) ) ,12) ) ) ) ) ,7) ) +transpose((transpose((transpose((echo(echo(X,4,6) ,4,6) |((X+transpose(X,4) ) +transpose(X,7) ) ) ,-5) +arpeggio(transpose(echo(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ,4,6) ,4) ) ) ,4) |(arpeggio(((X|X) +transpose(echo(X,4,6) ,12) ) ) +transpose(((step(X,12) +X) |transpose((transpose(transpose(X,-7) ,-7) +transpose(transpose(X,4) ,12) ) ,4) ) ,12) ) ) ,4) ) +transpose(echo(transpose(step((X+transpose(X,7) ) ,12) ,-5) ,4,6) ,7) ) |(transpose(((transpose(transpose((X+X) ,-5) ,-5) +transpose((transpose((X|X) ,-7) +transpose(echo(X,4,6) ,7) ) ,4) ) +transpose(((((X|X) +transpose(((X+X) +X) ,7) ) +transpose(transpose(X,-5) ,4) ) +transpose((transpose(X,-5) +transpose(X,-5) ) ,7) ) ,7) ) ,-5) |echo((transpose(transpose((transpose(echo(X,4,6) ,4) +transpose((X+X) ,7) ) ,-7) ,4) +transpose(arpeggio((((((step(X,12) +transpose(step(X,12) ,4) ) +transpose((X|X) ,7) ) |(X+X) ) +transpose(transpose(transpose(transpose(X,-5) ,-7) ,-7) ,12) ) |((transpose(transpose(X,-5) ,-5) |step(X,12) ) |(X+transpose(arpeggio(X) ,12) ) ) ) ) ,7) ) ,4,6) ) ) ) +transpose(transpose((transpose(shuffle((transpose(step(transpose(arpeggio(step(X,12) ) ,4) ,12) ,-7) |transpose(((transpose((echo(X,4,6) |(X|X) ) ,-5) +transpose(transpose(X,-7) ,4) ) +transpose((step(X,12) +step(X,12) ) ,7) ) ,-5) ) ) ,-7) +transpose((((((shuffle((transpose((transpose(X,4) +(X+X) ) ,-5) |transpose(shuffle((X+X) ) ,-7) ) ) +arpeggio(transpose(X,4) ) ) +transpose((transpose((arpeggio((transpose(X,4) +X) ) +transpose(transpose(X,-5) ,7) ) ,-7) +transpose(step((X+arpeggio(X) ) ,12) ,7) ) ,4) ) +transpose(transpose(transpose(((echo((transpose(X,-5) |transpose(X,4) ) ,4,6) +transpose((shuffle(shuffle(X) ) +transpose(((X+transpose(X,7) ) +transpose(X,7) ) ,12) ) ,4) ) +transpose((step(transpose(X,4) ,12) +transpose(transpose(X,-7) ,12) ) ,7) ) ,4) ,4) ,7) ) +transpose(transpose(transpose(((echo((X+transpose(X,7) ) ,4,6) |(X+(X+transpose(X,12) ) ) ) +transpose(transpose(transpose(X,-5) ,4) ,12) ) ,4) ,-5) ,4) ) +transpose((((echo((((transpose(X,-5) +transpose(X,-7) ) +transpose((X+transpose(X,7) ) ,4) ) +transpose((X|X) ,7) ) ,4,6) |((X+transpose(transpose(transpose(X,4) ,4) ,7) ) +transpose(((shuffle((X+transpose(X,7) ) ) +transpose(transpose((((X+transpose(X,7) ) +transpose(X,4) ) +transpose(shuffle(X) ,7) ) ,-7) ,4) ) +transpose((X+transpose(X,12) ) ,7) ) ,12) ) ) +transpose(shuffle((transpose(arpeggio(step(X,12) ) ,4) +transpose((transpose(X,-5) +transpose(((X+X) +(X+X) ) ,7) ) ,7) ) ) ,4) ) +transpose(transpose(((X+X) |X) ,-5) ,7) ) ,7) ) ,7) ) ,-5) ,4) ) +transpose(shuffle(transpose(((transpose(((X+X) +X) ,4) +transpose((shuffle(arpeggio(X) ) +transpose(((X|X) +(X|X) ) ,7) ) ,12) ) +transpose((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-5) ) ,-5) ) ,4) ) ,7) ) ,7) ) ) ,7) ) ,12) ) ,-7)
random seed used was 219502498

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