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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After 19 generations the expression "X" became this:
((((transpose(step(shuffle(transpose(transpose(transpose(arpeggio(X) ,-5) ,-7) ,-5) ) ,12) ,4) +transpose(((echo((X+transpose(X,-5) ) ,4,6) +transpose(transpose((arpeggio(shuffle(X) ) +(step(shuffle(transpose(X,-5) ) ,12) +transpose((step(X,12) |echo((X|X) ,4,6) ) ,7) ) ) ,-5) ,4) ) +(transpose(transpose(step(transpose(((((transpose((arpeggio(shuffle(X) ) +((X+transpose(X,4) ) +transpose(X,7) ) ) ,4) +transpose(transpose(transpose(X,-5) ,4) ,4) ) +transpose((X|X) ,7) ) +transpose((shuffle((((transpose((arpeggio(X) +transpose(X,7) ) ,4) +transpose(echo((X|X) ,4,6) ,4) ) +transpose(transpose(X,-5) ,7) ) |transpose((X+transpose(X,12) ) ,4) ) ) +arpeggio((X+transpose(X,12) ) ) ) ,4) ) +transpose(transpose((echo(transpose((arpeggio(X) +transpose(echo(X,4,6) ,7) ) ,-7) ,4,6) +transpose((transpose((echo(X,4,6) |step(X,12) ) ,-5) |(((shuffle(X) +transpose((X+transpose(X,7) ) ,12) ) |transpose(shuffle(X) ,-7) ) |(X+transpose(X,12) ) ) ) ,12) ) ,-5) ,7) ) ,-5) ,12) ,-5) ,-7) +transpose(transpose((arpeggio(((transpose(X,4) |X) |((X+X) |transpose(X,-7) ) ) ) +(transpose(transpose((((((X+transpose(X,7) ) +X) +transpose(step(transpose(shuffle(X) ,-5) ,12) ,7) ) +transpose(transpose((X+transpose(X,7) ) ,-5) ,4) ) +transpose(step((X+(X+X) ) ,12) ,7) ) ,-5) ,-7) +shuffle((arpeggio(transpose(((arpeggio(transpose(X,4) ) +transpose(transpose(X,-5) ,4) ) +transpose(((X+transpose(X,7) ) |X) ,7) ) ,-5) ) |(transpose(((X+X) +transpose(echo(X,4,6) ,7) ) ,-7) +transpose((shuffle(X) +transpose(((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(arpeggio(X) ,4) ) +transpose(X,7) ) ,4) ) ,12) ) ) ) ) ) ,4) ,12) ) ) ,7) ) |(((((transpose((step((X+transpose(X,12) ) ,12) |transpose((((X+transpose(X,4) ) +transpose(X,7) ) |X) ,4) ) ,-5) +transpose((step((((shuffle(X) +transpose((arpeggio(X) |(X|X) ) ,4) ) +transpose((transpose(X,-5) +transpose(X,12) ) ,7) ) |(echo(X,4,6) +transpose(arpeggio(X) ,12) ) ) ,12) |(((X|X) +transpose(arpeggio(X) ,12) ) +(X+((X+transpose(X,4) ) +transpose(X,7) ) ) ) ) ,12) ) |shuffle((step(transpose(transpose((X+transpose(X,12) ) ,-7) ,-7) ,12) +echo(((X+X) +(X|X) ) ,4,6) ) ) ) |step(((shuffle(((X+X) +transpose((X|X) ,12) ) ) |shuffle(echo(X,4,6) ) ) +transpose(arpeggio(arpeggio(echo((X+transpose(transpose(X,4) ,7) ) ,4,6) ) ) ,7) ) ,12) ) +((transpose(transpose((step(X,12) +transpose(shuffle(((X+transpose(X,12) ) +X) ) ,4) ) ,-7) ,-7) +transpose(shuffle(transpose((transpose(shuffle(transpose(((((X|X) +transpose(transpose(X,4) ,4) ) +transpose(transpose(X,-5) ,7) ) +transpose(X,12) ) ,4) ) ,4) +transpose(transpose(arpeggio(transpose(transpose(X,-5) ,4) ) ,-7) ,7) ) ,-5) ) ,12) ) +shuffle(transpose(transpose(shuffle(transpose(arpeggio(transpose(X,-5) ) ,4) ) ,4) ,-7) ) ) ) +((((transpose((((((((transpose(X,-5) |transpose(X,4) ) |transpose(X,4) ) +transpose((X+transpose(arpeggio(X) ,-7) ) ,7) ) +transpose(transpose(arpeggio((X+transpose(X,7) ) ) ,-7) ,-7) ) +transpose(transpose(transpose(((shuffle(X) +transpose(X,4) ) +transpose(arpeggio(X) ,7) ) ,-7) ,-7) ,4) ) +transpose(arpeggio(transpose(X,-5) ) ,7) ) |(echo(transpose(((((arpeggio(X) +transpose((X+transpose(X,7) ) ,4) ) +transpose(X,7) ) +transpose(X,4) ) +transpose(transpose(X,-7) ,7) ) ,-5) ,4,6) +transpose((((arpeggio(X) |(X|X) ) +((X+transpose(X,4) ) +transpose(transpose(X,-5) ,7) ) ) +transpose(step(transpose((transpose(X,4) +arpeggio(X) ) ,-7) ,12) ,12) ) ,7) ) ) ,-7) +transpose(((step(X,12) +transpose((arpeggio(transpose(transpose(X,4) ,4) ) +(X+(echo(X,4,6) +transpose(X,7) ) ) ) ,7) ) |(shuffle(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-5) ) +transpose(((X|X) +transpose(transpose(transpose(X,-7) ,4) ,7) ) ,7) ) ) ,4) ) +((arpeggio((shuffle(transpose(transpose((X+((X+X) +transpose(transpose(X,4) ,12) ) ) ,-5) ,-7) ) +transpose((((X+transpose(X,12) ) +echo(X,4,6) ) |arpeggio(shuffle(transpose(arpeggio(X) ,-7) ) ) ) ,-7) ) ) +((((arpeggio((X+X) ) +transpose((transpose(X,-7) +arpeggio(X) ) ,12) ) +transpose((((X+((X+transpose(X,4) ) +transpose(X,7) ) ) +transpose(((X+X) |echo(X,4,6) ) ,4) ) +transpose(transpose(transpose(X,-7) ,-7) ,7) ) ,7) ) +transpose(transpose(X,-5) ,4) ) +transpose(step(((((X+transpose(X,12) ) |shuffle(arpeggio(X) ) ) +transpose(shuffle(transpose(X,4) ) ,7) ) +transpose(transpose((shuffle(X) +transpose(X,4) ) ,4) ,12) ) ,12) ,12) ) ) +(transpose(arpeggio(step(transpose(transpose(X,4) ,-5) ,12) ) ,-5) +transpose((shuffle(transpose(transpose(transpose(X,4) ,-7) ,-7) ) +transpose(echo(echo((X+X) ,4,6) ,4,6) ,7) ) ,7) ) ) ) +arpeggio(transpose((((arpeggio(transpose(shuffle(X) ,-7) ) +transpose((((X+transpose(X,12) ) +transpose(transpose((X+transpose(X,12) ) ,-5) ,7) ) |arpeggio(X) ) ,4) ) +transpose(transpose((X+transpose(transpose(X,-7) ,7) ) ,-7) ,7) ) +transpose(((step(((transpose(shuffle(X) ,-7) +transpose(arpeggio(X) ,4) ) +transpose(step(X,12) ,7) ) ,12) |transpose(shuffle(((arpeggio(shuffle(X) ) +(transpose(X,-7) +arpeggio(X) ) ) +transpose(echo((arpeggio(X) |(X|X) ) ,4,6) ,12) ) ) ,4) ) +transpose(transpose((transpose((X+transpose(((X+transpose(X,12) ) |(X|X) ) ,12) ) ,4) +transpose((echo((shuffle(X) +transpose(((X+X) +transpose(X,12) ) ,7) ) ,4,6) +transpose(arpeggio((X|X) ) ,7) ) ,7) ) ,-7) ,7) ) ,12) ) ,-5) ) ) +transpose(transpose(arpeggio(transpose((X|X) ,4) ) ,4) ,7) ) ) ) |(transpose((transpose(step(transpose(((shuffle(shuffle((transpose(transpose(X,4) ,4) |echo(transpose(X,-5) ,4,6) ) ) ) +transpose(shuffle((shuffle(echo(X,4,6) ) +arpeggio((arpeggio(X) +X) ) ) ) ,4) ) +transpose((transpose(arpeggio(shuffle(X) ) ,-7) +transpose(echo(arpeggio(transpose(X,-7) ) ,4,6) ,-5) ) ,7) ) ,4) ,12) ,4) +arpeggio(transpose(shuffle(((((transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) +step(X,12) ) +transpose(arpeggio((((transpose(X,-7) +transpose((X+X) ,12) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ) +transpose((X|transpose(X,-5) ) ,7) ) ) ,4) ) +transpose(shuffle(((X|(X|X) ) |(((X+transpose(X,4) ) +transpose(X,7) ) +transpose(shuffle(X) ,12) ) ) ) ,7) ) +transpose(transpose(transpose((transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) |X) ,-5) ,-5) ,7) ) ) ,-5) ) ) ,-7) +transpose((shuffle(transpose(arpeggio(shuffle(shuffle(arpeggio((shuffle(echo(X,4,6) ) +step(X,12) ) ) ) ) ) ,-7) ) +(transpose(transpose((transpose(((((((X+transpose(X,12) ) +transpose(echo(X,4,6) ,7) ) +transpose(arpeggio(shuffle(X) ) ,4) ) +transpose(shuffle(transpose(echo(X,4,6) ,-7) ) ,7) ) |transpose(arpeggio(echo(step(X,12) ,4,6) ) ,-5) ) |(((step(transpose(X,-5) ,12) +transpose(transpose((X|X) ,4) ,4) ) +transpose(shuffle((X+X) ) ,7) ) +(echo(X,4,6) |transpose(X,-7) ) ) ) ,-7) |arpeggio(echo((((arpeggio(transpose(X,4) ) +transpose(arpeggio((shuffle((transpose(X,4) +transpose(X,-5) ) ) +(X|shuffle(transpose(X,-5) ) ) ) ) ,4) ) +transpose(arpeggio(shuffle(X) ) ,7) ) +shuffle(((arpeggio(transpose(X,4) ) +transpose((step((X+transpose(X,12) ) ,12) +transpose(shuffle(transpose(X,4) ) ,7) ) ,12) ) +arpeggio(transpose(X,-7) ) ) ) ) ,4,6) ) ) ,-5) ,-5) +(arpeggio(shuffle((((shuffle(arpeggio(X) ) +transpose((((shuffle((arpeggio(X) +X) ) +transpose((((X|transpose(X,-5) ) +transpose(shuffle(X) ,4) ) +transpose(X,7) ) ,4) ) +transpose(transpose(step(X,12) ,-7) ,7) ) +transpose(((X+X) +transpose((((X+X) +transpose((X+X) ,4) ) +transpose(arpeggio(X) ,7) ) ,7) ) ,-7) ) ,4) ) +transpose(X,7) ) +((transpose(((transpose(X,-5) |((X+transpose(X,12) ) +transpose(shuffle(X) ,7) ) ) +transpose((X+transpose(((transpose(X,-7) +transpose(X,4) ) +transpose((X|X) ,7) ) ,7) ) ,7) ) ,4) +transpose(((arpeggio(X) +transpose((step(X,12) +arpeggio(shuffle(transpose(X,4) ) ) ) ,4) ) +transpose((transpose(X,-7) +(X+X) ) ,7) ) ,4) ) +transpose((arpeggio(transpose(step((X|(arpeggio(X) |X) ) ,12) ,-5) ) +shuffle((transpose(transpose(transpose(X,4) ,-7) ,-7) |(arpeggio(transpose(X,4) ) +transpose((X+X) ,7) ) ) ) ) ,7) ) ) ) ) |(step((transpose(arpeggio(echo(shuffle(shuffle(step(transpose((X+transpose(X,12) ) ,-7) ,12) ) ) ,4,6) ) ,-5) +transpose(shuffle(arpeggio(arpeggio(transpose(shuffle((X+X) ) ,-7) ) ) ) ,12) ) ,12) +transpose(arpeggio(arpeggio(((transpose((X+X) ,4) +transpose(arpeggio(transpose(((echo(X,4,6) +transpose((X+X) ,12) ) +transpose((X+transpose(X,7) ) ,7) ) ,4) ) ,12) ) |((step(arpeggio(transpose(X,-5) ) ,12) |transpose(transpose((transpose(X,-5) +transpose((X+transpose(X,7) ) ,12) ) ,-7) ,-5) ) +transpose(((transpose((shuffle(X) +X) ,-5) +transpose(((((transpose(transpose(X,4) ,4) +transpose(X,7) ) +transpose((X+transpose(X,7) ) ,4) ) +transpose((X|X) ,7) ) +transpose(((X+transpose(X,-7) ) +((X+X) |echo(X,4,6) ) ) ,-7) ) ,4) ) +transpose((((shuffle(X) +transpose((transpose(X,-7) +transpose(X,4) ) ,4) ) +transpose((X+X) ,7) ) |arpeggio(X) ) ,7) ) ,12) ) ) ) ) ,-5) ) ) ) ) ,12) ) ) +(((step((transpose(transpose(arpeggio(transpose(transpose(X,-5) ,-7) ) ,-7) ,4) |transpose((step(shuffle(step((transpose(arpeggio((transpose(shuffle(X) ,-5) +transpose(arpeggio(X) ,12) ) ) ,4) +transpose(shuffle(echo((transpose(X,-7) +transpose(transpose(X,-7) ,12) ) ,4,6) ) ,7) ) ,12) ) ,12) +((((transpose(shuffle(X) ,4) |(shuffle(transpose((X+X) ,-7) ) +shuffle(arpeggio(X) ) ) ) +transpose((transpose((((X+transpose(X,7) ) +transpose(transpose(X,-7) ,7) ) +transpose(arpeggio(((X+transpose(X,4) ) +transpose(X,7) ) ) ,7) ) ,-7) |(transpose(((X+transpose(step(X,12) ,4) ) +transpose(step(X,12) ,7) ) ,-5) |((transpose(X,4) +transpose(shuffle(X) ,7) ) |transpose(transpose(echo(X,4,6) ,-5) ,4) ) ) ) ,4) ) +transpose(((((transpose(X,-5) +(X+transpose(X,12) ) ) +transpose(transpose(arpeggio(X) ,4) ,12) ) +transpose(shuffle(((X+transpose(arpeggio(X) ,12) ) +transpose(arpeggio(transpose(X,-5) ) ,7) ) ) ,4) ) +transpose(transpose(X,-5) ,7) ) ,7) ) +echo((transpose(((X+transpose(X,12) ) |arpeggio(X) ) ,-5) +arpeggio(transpose(X,-7) ) ) ,4,6) ) ) ,-5) ) ,12) +transpose((shuffle(transpose(arpeggio((arpeggio(transpose(shuffle(transpose(X,-7) ) ,-7) ) +transpose((arpeggio((arpeggio(arpeggio(X) ) |arpeggio((X+X) ) ) ) +transpose(shuffle(((((X|X) +transpose(transpose(X,-7) ,12) ) +transpose(transpose((X+transpose(X,7) ) ,-7) ,12) ) +shuffle((((X+transpose(X,4) ) +transpose(X,7) ) |transpose(X,-7) ) ) ) ) ,7) ) ,12) ) ) ,-5) ) +transpose((arpeggio(transpose((shuffle((arpeggio(X) |transpose(X,-5) ) ) |arpeggio(arpeggio(X) ) ) ,-7) ) +(transpose((transpose(transpose((transpose(step((X+transpose(X,12) ) ,12) ,-5) +transpose(transpose(arpeggio(X) ,4) ,7) ) ,4) ,-7) +transpose(((((transpose(shuffle(transpose((X|X) ,4) ) ,-5) +transpose(transpose(X,4) ,-7) ) +transpose((X+transpose(arpeggio(transpose(transpose(X,-5) ,4) ) ,7) ) ,4) ) +transpose(((step(X,12) +transpose(X,7) ) |transpose(step(X,12) ,-5) ) ,7) ) +transpose((transpose(shuffle(arpeggio(((X+transpose(X,7) ) +X) ) ) ,4) +step(echo((X+transpose(X,7) ) ,4,6) ,12) ) ,7) ) ,12) ) ,-5) +shuffle(((arpeggio(shuffle(transpose(transpose((X|X) ,-5) ,4) ) ) +transpose(arpeggio(transpose(arpeggio(shuffle((echo(X,4,6) +transpose(X,-5) ) ) ) ,4) ) ,7) ) |transpose(transpose(transpose((shuffle(X) +(X+transpose(X,12) ) ) ,-7) ,-7) ,4) ) ) ) ) ,12) ) ,7) ) +transpose((((arpeggio(echo(transpose((((transpose(shuffle(transpose(transpose(X,4) ,-7) ) ,-5) +transpose((shuffle((X|X) ) |transpose(transpose(X,-5) ,-5) ) ,4) ) +transpose(transpose(((shuffle(X) |(X+transpose(X,12) ) ) |transpose(transpose(X,4) ,-7) ) ,4) ,7) ) +transpose(((shuffle(X) +transpose(transpose(transpose(step((X+X) ,12) ,-7) ,-5) ,4) ) +transpose((transpose((transpose(X,4) |transpose(X,4) ) ,-7) +transpose(((transpose(X,-7) |X) +((X+X) +transpose(transpose(X,4) ,12) ) ) ,12) ) ,7) ) ,12) ) ,4) ,4,6) ) +transpose(step((arpeggio(echo(transpose(echo((arpeggio(X) |arpeggio(X) ) ,4,6) ,4) ,4,6) ) +(echo(((arpeggio((transpose(X,-7) +transpose((X|X) ,12) ) ) +shuffle(shuffle((X|X) ) ) ) +transpose(((transpose(X,-7) +transpose(transpose(step(X,12) ,-7) ,7) ) +transpose(transpose((arpeggio(X) +((arpeggio(X) +(X|X) ) |((X+X) |(X+transpose(X,12) ) ) ) ) ,-7) ,12) ) ,7) ) ,4,6) +arpeggio((transpose((X+transpose((X|X) ,12) ) ,-7) +shuffle((step(((X+transpose(X,4) ) +transpose(X,7) ) ,12) +transpose(arpeggio((step(X,12) +transpose(X,12) ) ) ,12) ) ) ) ) ) ) ,12) ,4) ) +transpose((((((arpeggio((arpeggio((((shuffle(transpose(shuffle(X) ,4) ) +(arpeggio(X) +transpose(shuffle(arpeggio(X) ) ,7) ) ) +transpose(shuffle((X+transpose((X|X) ,-5) ) ) ,4) ) +transpose(((X+transpose(X,7) ) |transpose(X,4) ) ,7) ) ) +transpose(echo(shuffle(((X+transpose(X,4) ) +transpose(transpose(X,-5) ,7) ) ) ,4,6) ,7) ) ) +transpose((transpose((transpose(transpose(step(transpose(X,-7) ,12) ,4) ,-5) |(((X+X) +transpose((shuffle(echo(X,4,6) ) |transpose(arpeggio(X) ,4) ) ,12) ) +transpose(((transpose(X,4) +transpose(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-7) ,12) ) +transpose(transpose((X+transpose((X|X) ,7) ) ,4) ,12) ) ,12) ) ) ,4) |arpeggio(transpose(arpeggio((transpose(arpeggio(X) ,-5) |(transpose(X,-5) +transpose(transpose(X,4) ,12) ) ) ) ,-5) ) ) ,7) ) +shuffle(((transpose((transpose((arpeggio(X) +arpeggio(X) ) ,-5) +transpose(step(X,12) ,7) ) ,4) +transpose(X,4) ) +transpose((((arpeggio(X) |arpeggio((X+transpose(X,7) ) ) ) +transpose((shuffle(shuffle(X) ) +arpeggio((X+transpose(X,12) ) ) ) ,7) ) |transpose((step((((arpeggio(X) |arpeggio(X) ) +transpose((X+transpose(X,7) ) ,4) ) +transpose(echo(X,4,6) ,7) ) ,12) +transpose(arpeggio((X+transpose(X,7) ) ) ,12) ) ,4) ) ,12) ) ) ) |shuffle((arpeggio(shuffle(transpose(transpose(step(arpeggio(step((X+transpose(X,12) ) ,12) ) ,12) ,-5) ,-5) ) ) +shuffle(transpose(echo(X,4,6) ,4) ) ) ) ) +transpose(transpose((transpose(((((transpose(transpose(transpose(X,-5) ,-5) ,4) +transpose(transpose(transpose(X,4) ,4) ,4) ) +transpose(((transpose(transpose(X,-7) ,4) +shuffle(X) ) +((shuffle(X) +transpose(echo(transpose(transpose(X,-5) ,-5) ,4,6) ,4) ) +transpose((X|X) ,7) ) ) ,7) ) +transpose((transpose(shuffle(transpose(X,4) ) ,-7) |echo(transpose(echo(X,4,6) ,4) ,4,6) ) ,12) ) +transpose((((transpose(X,4) +transpose(transpose(transpose(X,-7) ,-7) ,12) ) +transpose(transpose(shuffle((((X+X) |X) +X) ) ,4) ,12) ) +transpose((arpeggio(transpose((X+X) ,-7) ) +transpose(echo(arpeggio(transpose(X,-5) ) ,4,6) ,7) ) ,12) ) ,12) ) ,-5) |step(shuffle(arpeggio(arpeggio(X) ) ) ,12) ) ,-5) ,4) ) +transpose(shuffle(step(transpose(shuffle(arpeggio(X) ) ,4) ,12) ) ,7) ) ,7) ) +transpose(arpeggio(((arpeggio(shuffle(transpose(((X+transpose(transpose(X,4) ,7) ) +transpose(arpeggio(transpose(X,-7) ) ,7) ) ,-7) ) ) +transpose((((transpose(shuffle(arpeggio(X) ) ,4) +transpose(((transpose(transpose(transpose(X,-7) ,-5) ,-7) +(step(X,12) +((X+transpose(X,4) ) +transpose(X,7) ) ) ) +shuffle(shuffle(X) ) ) ,4) ) +transpose(arpeggio(X) ,7) ) |arpeggio(step(transpose(transpose(X,-5) ,4) ,12) ) ) ,4) ) +transpose((echo((((X+(X+transpose(X,12) ) ) +shuffle((X|X) ) ) +((X+transpose(X,12) ) +transpose(X,-5) ) ) ,4,6) +(arpeggio(((X+transpose(X,4) ) +transpose(X,7) ) ) |X) ) ,7) ) ) ,7) ) ,7) ) +(transpose((echo(echo(((arpeggio(shuffle(shuffle((shuffle((X+transpose(X,7) ) ) +arpeggio(X) ) ) ) ) +transpose(transpose((transpose((echo(X,4,6) +X) ,4) +(transpose(X,-7) +transpose(((transpose((X+transpose(X,12) ) ,4) +transpose(X,12) ) +shuffle(X) ) ,7) ) ) ,4) ,4) ) +transpose(((shuffle((X+transpose(X,7) ) ) |transpose(shuffle(X) ,-7) ) +transpose(((arpeggio(X) +transpose(transpose(X,4) ,7) ) +transpose(arpeggio(X) ,12) ) ,7) ) ,7) ) ,4,6) ,4,6) |(transpose((transpose(transpose(arpeggio((shuffle(((X|X) +(X|X) ) ) |(arpeggio(X) +transpose(shuffle(transpose(X,-5) ) ,12) ) ) ) ,-7) ,4) +arpeggio((shuffle((shuffle(shuffle(shuffle(X) ) ) |(X+transpose(transpose(X,4) ,7) ) ) ) +transpose((shuffle((transpose(X,-7) +transpose(transpose(arpeggio(X) ,4) ,7) ) ) |arpeggio(((X|(transpose(X,-7) +transpose(X,12) ) ) |((X+transpose(shuffle(X) ,4) ) +transpose(transpose(X,-5) ,7) ) ) ) ) ,7) ) ) ) ,-5) +transpose(transpose((shuffle(transpose((((arpeggio(transpose(X,-5) ) |transpose((transpose(X,-7) +transpose(transpose(X,-5) ,7) ) ,-5) ) +transpose((arpeggio(echo(X,4,6) ) +transpose(transpose(transpose(X,-5) ,-5) ,7) ) ,4) ) +transpose(arpeggio(((X+arpeggio(X) ) +transpose(X,12) ) ) ,7) ) ,-7) ) +shuffle(((((X|shuffle((X+X) ) ) +transpose(transpose(transpose(X,-7) ,4) ,4) ) +transpose((transpose(transpose(X,-7) ,-7) +shuffle(transpose(X,-5) ) ) ,7) ) +transpose(arpeggio(transpose((X+X) ,-7) ) ,12) ) ) ) ,-5) ,12) ) ) ,4) |(step(arpeggio((shuffle(((shuffle(transpose(((step(arpeggio(X) ,12) +((((X+X) +(arpeggio(X) |X) ) +transpose(shuffle(transpose(X,-7) ) ,4) ) +transpose(transpose(((X+transpose(arpeggio(X) ,4) ) +transpose((X|X) ,7) ) ,-5) ,7) ) ) +shuffle((transpose(X,4) |shuffle(X) ) ) ) ,-7) ) +transpose(transpose((step(X,12) |step(shuffle(X) ,12) ) ,-5) ,4) ) +transpose(echo(((X|X) +transpose(echo(transpose(((X+transpose((X+X) ,4) ) +transpose(echo(X,4,6) ,7) ) ,4) ,4,6) ,12) ) ,4,6) ,7) ) ) +(step((echo(arpeggio(shuffle(transpose(arpeggio(shuffle(X) ) ,-5) ) ) ,4,6) +transpose(((transpose(shuffle(transpose(X,-7) ) ,-7) +transpose(((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(X,4) ) +transpose(X,7) ) ,12) ) +(arpeggio((((X|step(X,12) ) +transpose(transpose(X,-7) ,7) ) |arpeggio(transpose(X,-5) ) ) ) |step((arpeggio(step(X,12) ) +transpose(echo(shuffle(transpose(X,-7) ) ,4,6) ,12) ) ,12) ) ) ,7) ) ,12) +transpose((step(arpeggio(shuffle(((X+transpose(X,12) ) +shuffle(echo(X,4,6) ) ) ) ) ,12) +(((transpose(shuffle(shuffle((X+transpose(X,7) ) ) ) ,4) +transpose(transpose(transpose(X,-7) ,4) ,12) ) +transpose(arpeggio(arpeggio(((transpose(X,-7) +transpose(X,12) ) +transpose(echo(X,4,6) ,7) ) ) ) ,12) ) +transpose(transpose((((X|X) +arpeggio(X) ) +transpose(step(X,12) ,12) ) ,-5) ,12) ) ) ,7) ) ) ) ,12) +(arpeggio(transpose(((arpeggio(arpeggio(transpose(arpeggio(shuffle(arpeggio(X) ) ) ,-7) ) ) +transpose(step((((((transpose(X,-7) +transpose(shuffle(((arpeggio(X) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ) +transpose(arpeggio(X) ,7) ) ) ,4) ) +transpose(transpose(X,-7) ,7) ) +transpose((shuffle(transpose(X,-5) ) +step(X,12) ) ,7) ) +transpose(((X+X) |step(X,12) ) ,12) ) +transpose(((((arpeggio(transpose(X,-5) ) +(X+((shuffle(X) +transpose((X+transpose(transpose(X,-7) ,12) ) ,4) ) +transpose(((((X+transpose(X,4) ) +transpose(X,7) ) +transpose((X+transpose(X,7) ) ,4) ) +transpose(X,7) ) ,7) ) ) ) +transpose((((transpose(X,4) +transpose((X|X) ,4) ) +transpose(arpeggio(X) ,7) ) +transpose((((shuffle(X) |X) |transpose(transpose(X,-5) ,4) ) +((arpeggio(X) +transpose(shuffle(X) ,4) ) +transpose(shuffle(X) ,7) ) ) ,12) ) ,12) ) +transpose(transpose(step(echo(shuffle(echo(X,4,6) ) ,4,6) ,12) ,4) ,4) ) +transpose((step(arpeggio(((X+transpose(X,12) ) +transpose(X,12) ) ) ,12) |transpose(echo(echo(transpose(X,-7) ,4,6) ,4,6) ,-5) ) ,7) ) ,7) ) ,12) ,12) ) |((((transpose((((X|(X|X) ) |X) |(X+transpose((X+transpose(X,7) ) ,7) ) ) ,-5) +transpose(echo((((transpose(transpose(X,4) ,-5) +transpose((X|transpose(X,-7) ) ,7) ) +transpose(((transpose(X,-7) +(((X+transpose(X,4) ) +transpose(X,7) ) +transpose(arpeggio(echo(X,4,6) ) ,12) ) ) |transpose(X,-5) ) ,12) ) +((((X|X) +transpose(transpose(X,-5) ,4) ) +transpose(step((X+X) ,12) ,7) ) +arpeggio(((X+transpose(X,7) ) |X) ) ) ) ,4,6) ,12) ) +transpose(arpeggio(echo(arpeggio(transpose(transpose(arpeggio(X) ,-5) ,-5) ) ,4,6) ) ,7) ) +transpose(transpose(arpeggio(arpeggio(arpeggio((((arpeggio(X) +transpose(transpose(X,-7) ,4) ) +transpose(shuffle(X) ,7) ) +transpose((X+X) ,12) ) ) ) ) ,-5) ,4) ) +transpose(echo(echo(transpose(arpeggio(shuffle(shuffle(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-7) ) ) ) ,-7) ,4,6) ,4,6) ,7) ) ) ,4) ) +transpose(arpeggio(arpeggio(step(transpose(transpose((((((X+transpose(X,7) ) +transpose(shuffle((X|X) ) ,7) ) +transpose((shuffle(X) +((X+transpose(X,4) ) +transpose(X,7) ) ) ,12) ) +transpose(transpose(X,4) ,4) ) +transpose(shuffle((X+transpose(transpose(transpose(X,-7) ,-5) ,12) ) ) ,7) ) ,4) ,-7) ,12) ) ) ,12) ) ) ) ) )
random seed used was 110863074

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