Tune Toys : Expresso

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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.

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After 20 generations the expression "X" became this:

(((echo((((step(((((transpose(X,4) +transpose(arpeggio(transpose(X,-7) ) ,4) ) +transpose((arpeggio(X) +transpose((shuffle(X) +X) ,12) ) ,7) ) +((shuffle(((X+transpose(X,4) ) +transpose(X,7) ) ) +transpose(step(X,12) ,12) ) +transpose(transpose(((X+X) +transpose(X,7) ) ,-5) ,12) ) ) +transpose((echo((((shuffle(X) +transpose((X+X) ,4) ) +transpose(X,7) ) +transpose(((X+transpose(X,12) ) |X) ,7) ) ,4,6) +transpose(step(step(transpose((X+transpose(X,7) ) ,4) ,12) ,12) ,12) ) ,7) ) ,12) +transpose(arpeggio((X+X) ) ,12) ) +(((arpeggio(transpose((echo(transpose(X,-5) ,4,6) +transpose(echo(echo(X,4,6) ,4,6) ,12) ) ,-5) ) +transpose(step(transpose(step(((((X+transpose(X,7) ) +transpose(transpose(X,-5) ,7) ) +transpose(transpose(X,4) ,4) ) +transpose(((X+transpose((X+transpose(X,7) ) ,4) ) +transpose((X+transpose(X,7) ) ,7) ) ,7) ) ,12) ,-5) ,12) ,4) ) +transpose(arpeggio(((arpeggio(echo(X,4,6) ) +transpose(shuffle(transpose(transpose((X+transpose(X,12) ) ,-7) ,4) ) ,12) ) +transpose(transpose((((X+transpose(X,12) ) +X) +transpose(((((X+transpose(X,12) ) +transpose(transpose(X,-7) ,12) ) +transpose(transpose((X+X) ,-5) ,4) ) +transpose((arpeggio(X) |(X|X) ) ,7) ) ,12) ) ,4) ,7) ) ) ,7) ) +((arpeggio(echo(transpose(echo(arpeggio(step(X,12) ) ,4,6) ,-5) ,4,6) ) +transpose(arpeggio(transpose(transpose(((X+transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) +transpose((transpose(X,4) +transpose(transpose(X,-7) ,12) ) ,7) ) ,-7) ,-7) ) ,4) ) +transpose(arpeggio(arpeggio(X) ) ,7) ) ) ) +transpose((shuffle(arpeggio(step(((((X+transpose(X,12) ) +transpose((X+transpose(X,7) ) ,4) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) +transpose(transpose(X,4) ,7) ) ,12) ) ) +echo((echo(echo(transpose(arpeggio(X) ,-7) ,4,6) ,4,6) +transpose(step((arpeggio(step(shuffle((X+transpose(transpose(X,4) ,12) ) ) ,12) ) +transpose(echo(arpeggio(echo((step(X,12) +transpose(transpose(X,-5) ,12) ) ,4,6) ) ,4,6) ,-5) ) ,12) ,7) ) ,4,6) ) ,12) ) ,4,6) |(transpose((((echo(transpose(shuffle(arpeggio(X) ) ,4) ,4,6) +transpose((((step(transpose((X+transpose(X,7) ) ,-7) ,12) +transpose(transpose(((((X+transpose(X,12) ) +transpose(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ,4) ) +transpose(step(X,12) ,7) ) +transpose(echo(X,4,6) ,12) ) ,-7) ,4) ) +transpose(transpose(arpeggio(X) ,4) ,7) ) +(((((shuffle((X|X) ) +transpose((((X+transpose(X,7) ) +transpose(X,7) ) +transpose(arpeggio(X) ,12) ) ,4) ) +transpose((X|X) ,7) ) +transpose(arpeggio(X) ,7) ) +transpose(shuffle((step((step(X,12) |X) ,12) |step(X,12) ) ) ,7) ) +transpose(transpose(X,-7) ,12) ) ) ,12) ) |step(((((((echo(transpose((((step(X,12) +transpose(shuffle(X) ,7) ) +transpose(echo(X,4,6) ,4) ) +transpose(echo(step(X,12) ,4,6) ,7) ) ,-7) ,4,6) +transpose(((transpose((transpose(X,-5) |shuffle(X) ) ,-5) +X) +transpose((((((X|X) +X) |transpose(step(echo((X+transpose(X,7) ) ,4,6) ,12) ,-7) ) +transpose((shuffle((echo(X,4,6) |shuffle(X) ) ) +transpose(arpeggio(step((X+transpose(X,7) ) ,12) ) ,12) ) ,4) ) +transpose(transpose(X,4) ,7) ) ,12) ) ,4) ) +transpose(((transpose(X,-5) +transpose(((X+(X+X) ) +transpose(X,12) ) ,7) ) +transpose((transpose((shuffle(X) +transpose(X,7) ) ,-5) +transpose(echo((X|(X+X) ) ,4,6) ,7) ) ,12) ) ,7) ) +transpose(shuffle(step(echo((((arpeggio(X) +transpose(X,4) ) +transpose((X+transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ) ,7) ) |(((X+transpose(X,12) ) +step(X,12) ) +transpose((X+transpose(X,-5) ) ,12) ) ) ,4,6) ,12) ) ,4) ) +transpose((((((X+transpose(X,12) ) +transpose(step(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ,12) ) +transpose((((echo(X,4,6) +transpose((X|X) ,4) ) +transpose((((X+transpose(X,4) ) +transpose(X,7) ) +(X|X) ) ,7) ) +transpose((((shuffle(((X+transpose(X,4) ) +transpose(X,7) ) ) +X) +transpose(step(X,12) ,4) ) +transpose((transpose(X,4) +X) ,7) ) ,7) ) ,7) ) +((transpose((X+transpose(X,12) ) ,-5) +transpose((X|transpose(X,-5) ) ,7) ) +transpose((arpeggio(X) +transpose(echo(((X+transpose(X,4) ) +transpose(X,7) ) ,4,6) ,7) ) ,12) ) ) +step((arpeggio(X) +transpose((X+transpose(shuffle(X) ,7) ) ,12) ) ,12) ) ,7) ) +transpose((echo((((((shuffle((X|X) ) +transpose(transpose(X,-5) ,4) ) +transpose((arpeggio(X) +transpose(X,-5) ) ,7) ) +transpose(((X+transpose(echo(X,4,6) ,12) ) +((X+transpose(X,4) ) +transpose(X,7) ) ) ,7) ) +transpose(echo(X,4,6) ,12) ) +transpose((((transpose(X,-5) +transpose(arpeggio(X) ,7) ) |(((X|X) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ) +transpose((X+transpose(X,12) ) ,7) ) ) +transpose((echo(X,4,6) +(arpeggio(X) +transpose(X,12) ) ) ,12) ) ,12) ) ,4,6) +transpose((transpose((shuffle(echo(transpose(shuffle(X) ,4) ,4,6) ) +step(((X+transpose(X,7) ) +transpose((X+transpose(X,12) ) ,12) ) ,12) ) ,-5) +transpose(step(transpose(((transpose(X,4) +transpose(step(X,12) ,7) ) +arpeggio(X) ) ,4) ,12) ,7) ) ,12) ) ,4) ) +transpose((arpeggio(transpose((X|(X+transpose(X,7) ) ) ,-7) ) +transpose(echo(shuffle(((echo(X,4,6) +transpose((X+transpose(X,7) ) ,4) ) +transpose(X,7) ) ) ,4,6) ,7) ) ,7) ) ,12) ) +transpose((step(((transpose(echo(X,4,6) ,-7) +transpose(echo(echo((X|X) ,4,6) ,4,6) ,4) ) +transpose((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(X,7) ) ,7) ) ,12) +transpose((step((shuffle((X+step(transpose(X,4) ,12) ) ) +transpose((echo(((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(X,4) ) +transpose(X,7) ) ,4,6) |transpose(transpose((transpose(X,-5) +transpose((X+transpose(X,12) ) ,12) ) ,4) ,-5) ) ,7) ) ,12) |((step((((((transpose((X+X) ,-5) +transpose(echo(X,4,6) ,4) ) +transpose((step(X,12) +transpose((X+X) ,12) ) ,7) ) +((arpeggio(shuffle(X) ) +arpeggio(echo(X,4,6) ) ) +transpose((((X+transpose(X,12) ) +transpose(X,4) ) +transpose((((X+transpose(transpose(X,-5) ,4) ) +transpose(X,7) ) +transpose(X,7) ) ,7) ) ,7) ) ) +transpose((echo(X,4,6) +transpose(arpeggio(X) ,12) ) ,12) ) +transpose(echo(shuffle(transpose(step(shuffle(shuffle(X) ) ,12) ,4) ) ,4,6) ,7) ) ,12) +transpose((((X+transpose(X,12) ) |(shuffle((X+transpose(step(X,12) ,7) ) ) |shuffle((X+X) ) ) ) +echo(((arpeggio(X) +transpose(echo((shuffle(transpose(X,-5) ) +transpose(transpose(transpose(X,-7) ,-5) ,12) ) ,4,6) ,4) ) +transpose(shuffle(step(X,12) ) ,7) ) ,4,6) ) ,4) ) +transpose((((((((((X+transpose(X,7) ) +transpose(arpeggio(X) ,4) ) +transpose((X+X) ,7) ) +transpose(((X+transpose(X,7) ) +transpose(arpeggio(X) ,7) ) ,12) ) +arpeggio(transpose(X,4) ) ) +transpose(transpose(echo(transpose(X,4) ,4,6) ,-5) ,4) ) +transpose(shuffle((shuffle(X) |transpose(X,-5) ) ) ,7) ) +transpose((transpose(echo((X+transpose(X,12) ) ,4,6) ,-5) +transpose(transpose(((X+X) +transpose((X|X) ,12) ) ,4) ,7) ) ,4) ) +transpose((shuffle(transpose(shuffle(step(X,12) ) ,-5) ) |((((step(X,12) +transpose(X,4) ) +transpose(step(X,12) ,7) ) |(((X+X) +X) +transpose(shuffle(shuffle(X) ) ,12) ) ) +transpose((X+(((arpeggio((X+transpose(X,12) ) ) +transpose(shuffle((X+transpose(X,7) ) ) ,7) ) +transpose(echo(X,4,6) ,4) ) +transpose((X|X) ,7) ) ) ,12) ) ) ,7) ) ,7) ) ) ,7) ) ,7) ) ,-7) +transpose(transpose(transpose(transpose((((arpeggio(echo(shuffle(arpeggio(X) ) ,4,6) ) +transpose((transpose((X+X) ,4) +transpose(((X|X) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ) ,7) ) ,4) ) +transpose(transpose((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(step(X,12) ,7) ) ,-7) ,7) ) +transpose((((X+transpose(transpose((transpose(X,4) +transpose(X,12) ) ,4) ,12) ) +transpose((X+transpose(X,12) ) ,7) ) +((transpose(transpose(shuffle(X) ,-5) ,-7) +transpose(X,12) ) +transpose(transpose(shuffle((X+transpose(X,7) ) ) ,-5) ,12) ) ) ,12) ) ,4) ,-7) ,-5) ,7) ) ) |((step(((arpeggio((((arpeggio(transpose(echo(((X+transpose(X,4) ) +transpose(X,7) ) ,4,6) ,-7) ) +transpose(echo(((((transpose(X,-7) +(arpeggio(X) +transpose(X,4) ) ) |(((X+transpose(X,4) ) +transpose(shuffle(X) ,7) ) +transpose(((transpose(X,-5) +transpose(transpose(X,-7) ,4) ) +transpose(arpeggio(X) ,7) ) ,7) ) ) +transpose(shuffle((((X+X) +transpose(echo(X,4,6) ,12) ) |((echo(X,4,6) +transpose((X+transpose(X,12) ) ,4) ) +transpose(transpose(X,-5) ,7) ) ) ) ,4) ) +transpose((((transpose((X+X) ,-5) +transpose(echo((X+transpose(X,7) ) ,4,6) ,12) ) +transpose(((X+(X+transpose(X,12) ) ) +transpose(shuffle(X) ,12) ) ,4) ) +transpose(shuffle(X) ,7) ) ,7) ) ,4,6) ,7) ) +transpose(arpeggio(X) ,7) ) +transpose((transpose((((((X|X) +transpose(X,4) ) +transpose(transpose(X,-7) ,7) ) +transpose(step((X+X) ,12) ,7) ) +transpose(arpeggio(arpeggio((X+transpose(X,12) ) ) ) ,7) ) ,4) +transpose(echo(transpose(echo((X+transpose(transpose((X+transpose(X,12) ) ,4) ,12) ) ,4,6) ,-7) ,4,6) ,12) ) ,7) ) ) +transpose((shuffle(((arpeggio(X) +transpose((X+X) ,7) ) +transpose(X,7) ) ) +(echo(arpeggio((X+transpose(X,7) ) ) ,4,6) +transpose((step(arpeggio(echo(X,4,6) ) ,12) +((X+X) +transpose(transpose(X,-5) ,7) ) ) ,12) ) ) ,4) ) +transpose(step(((transpose(((((((((X+transpose(transpose(X,-5) ,4) ) +transpose(X,7) ) +((X+transpose(X,12) ) +transpose(transpose(X,4) ,12) ) ) +transpose(((echo(X,4,6) +transpose((X+transpose(X,12) ) ,4) ) +transpose((X+transpose(X,7) ) ,7) ) ,7) ) +transpose((shuffle(((X|X) +transpose((X|X) ,12) ) ) +((X+transpose((shuffle(X) +transpose((X+transpose(X,12) ) ,7) ) ,4) ) +transpose((X|X) ,7) ) ) ,4) ) +transpose(shuffle(((((arpeggio(X) +transpose(transpose(X,-7) ,4) ) +transpose(X,7) ) +transpose(X,4) ) +transpose(arpeggio(arpeggio(X) ) ,7) ) ) ,7) ) +transpose((transpose(echo((X+(X+transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ) ) ,4,6) ,-5) +transpose((step(X,12) |X) ,-7) ) ,4) ) +transpose((X+transpose((transpose(transpose(echo(X,4,6) ,-7) ,4) +((echo(X,4,6) +transpose(shuffle(X) ,4) ) +transpose(((X+X) +transpose(transpose(X,4) ,7) ) ,7) ) ) ,12) ) ,7) ) ,-5) +transpose(shuffle(((transpose(step(((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ) +transpose((X|X) ,7) ) ,12) ,4) +transpose(echo((shuffle((transpose(X,4) +((X+transpose(X,4) ) +transpose(X,7) ) ) ) +transpose(step(X,12) ,7) ) ,4,6) ,4) ) +transpose(((step(((X+transpose(X,4) ) +transpose(X,7) ) ,12) +transpose((X+transpose(X,7) ) ,4) ) +transpose((X|transpose(X,-5) ) ,7) ) ,7) ) ) ,4) ) +transpose(shuffle((transpose(echo(transpose(X,4) ,4,6) ,4) +transpose(((((transpose(X,4) +transpose(arpeggio(X) ,4) ) +transpose((((((X+transpose(X,4) ) +transpose(X,7) ) +X) +transpose(step(X,12) ,4) ) +transpose(X,7) ) ,7) ) |(echo(transpose(shuffle(X) ,4) ,4,6) +transpose(echo(echo(X,4,6) ,4,6) ,7) ) ) +transpose(((((X+X) +transpose(step(echo(X,4,6) ,12) ,7) ) +((transpose(echo(X,4,6) ,4) +transpose(transpose(arpeggio(X) ,4) ,4) ) +transpose(transpose(X,-5) ,7) ) ) +(transpose(((transpose(X,-5) +transpose(X,4) ) +transpose(echo(X,4,6) ,7) ) ,-5) |((X+transpose(arpeggio(X) ,4) ) +transpose(transpose(X,4) ,7) ) ) ) ,12) ) ,12) ) ) ,7) ) ,12) ,7) ) ,12) +transpose(shuffle((transpose(step(shuffle(transpose((X|(X+transpose(X,7) ) ) ,-7) ) ,12) ,-7) +transpose(shuffle(transpose(((X+transpose((step(echo(X,4,6) ,12) +transpose(((X+transpose((X|X) ,7) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ) ,12) ) ,4) ) +transpose((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(X,12) ) ,7) ) ,-7) ) ,7) ) ) ,12) ) +(((echo((arpeggio(X) +transpose(arpeggio(echo(X,4,6) ) ,12) ) ,4,6) +transpose((((((echo((shuffle(X) +transpose((step(X,12) +transpose(X,7) ) ,12) ) ,4,6) |((((X+transpose(X,12) ) |arpeggio((X+transpose(X,12) ) ) ) +transpose(transpose(((step(X,12) +transpose(transpose(X,4) ,4) ) +transpose(transpose(X,4) ,7) ) ,-7) ,4) ) +transpose(((X+transpose(X,7) ) +echo((transpose(X,-5) +transpose(X,7) ) ,4,6) ) ,7) ) ) +transpose((((transpose(X,4) +transpose(arpeggio(X) ,12) ) +(transpose((X+X) ,-7) +transpose(transpose(echo((X|X) ,4,6) ,4) ,7) ) ) +(((transpose((X+X) ,-7) +transpose(transpose((X+transpose(X,7) ) ,4) ,12) ) |(arpeggio(X) |arpeggio(X) ) ) +transpose(shuffle(((X+transpose(X,4) ) +transpose(X,7) ) ) ,12) ) ) ,4) ) +transpose((echo(arpeggio(((X+transpose(X,4) ) +transpose(transpose(X,4) ,7) ) ) ,4,6) +transpose(echo(X,4,6) ,7) ) ,7) ) +transpose((X+transpose((X+X) ,12) ) ,-7) ) +transpose(((((step((X+X) ,12) +transpose(transpose(arpeggio(transpose((X|X) ,-5) ) ,4) ,12) ) +transpose(transpose(transpose(X,4) ,4) ,7) ) +transpose(echo(shuffle((X+transpose(X,12) ) ) ,4,6) ,4) ) +transpose(transpose(((arpeggio(X) +transpose(shuffle(X) ,7) ) +transpose((X|echo(X,4,6) ) ,12) ) ,-5) ,7) ) ,7) ) ,4) ) +transpose((((((((((X+transpose(X,4) ) +transpose(X,7) ) |(X+transpose(X,7) ) ) +transpose(transpose(transpose(X,-5) ,-5) ,12) ) +transpose(((shuffle(((X+transpose(X,4) ) +transpose(X,7) ) ) |((X+X) +transpose(X,12) ) ) +transpose((((X+transpose(X,12) ) +transpose(transpose(step(X,12) ,-7) ,4) ) +transpose(transpose((X+transpose(X,7) ) ,-7) ,7) ) ,7) ) ,7) ) +((((X+transpose(X,12) ) +((X+transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ) +transpose(X,7) ) ) +transpose(transpose(X,-7) ,4) ) +transpose(transpose(echo(X,4,6) ,-5) ,7) ) ) |transpose(shuffle(X) ,-7) ) +transpose((((((transpose((X|X) ,-5) +((X+transpose(X,12) ) +transpose(((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(echo(X,4,6) ,4) ) +transpose(X,7) ) ,12) ) ) +transpose(arpeggio(X) ,7) ) |((((X|X) +transpose(((X+transpose(X,7) ) +shuffle(X) ) ,12) ) +transpose(arpeggio(X) ,12) ) +transpose(arpeggio(X) ,-5) ) ) |(((step(X,12) +X) +transpose(transpose((((X+transpose(X,4) ) +transpose(X,7) ) |step(X,12) ) ,-5) ,12) ) +transpose(((arpeggio(X) +transpose((X+transpose(X,7) ) ,4) ) +transpose((((((X+transpose(X,4) ) +transpose(X,7) ) |X) +transpose(transpose(X,4) ,4) ) +transpose(arpeggio((X+transpose(X,12) ) ) ,7) ) ,7) ) ,12) ) ) +transpose(echo((transpose(transpose(arpeggio((X+X) ) ,-5) ,-7) +transpose((transpose(echo((X+X) ,4,6) ,4) |(((X+transpose(X,12) ) +transpose(step(transpose(step(X,12) ,-5) ,12) ,4) ) +transpose(shuffle((((X|X) +transpose(X,12) ) |echo(transpose(X,-7) ,4,6) ) ) ,7) ) ) ,12) ) ,4,6) ,7) ) ,12) ) +(((arpeggio(step((((X+transpose(X,4) ) +transpose(X,7) ) +(X+X) ) ,12) ) +transpose(((X+transpose(((arpeggio(X) +shuffle(X) ) |echo(X,4,6) ) ,4) ) +transpose(echo(transpose(arpeggio((X+X) ) ,-5) ,4,6) ,7) ) ,12) ) +transpose(arpeggio((step((X+transpose(X,7) ) ,12) +echo(echo(X,4,6) ,4,6) ) ) ,7) ) +transpose((transpose(((step(X,12) +transpose(arpeggio(X) ,12) ) +transpose(arpeggio((X+transpose(X,7) ) ) ,12) ) ,-5) +(transpose((transpose(transpose((shuffle(X) |echo(X,4,6) ) ,-7) ,-7) +transpose(step(X,12) ,12) ) ,-5) +transpose((((((((X+transpose(X,7) ) +transpose(X,12) ) +transpose((X+X) ,12) ) +arpeggio(((echo(X,4,6) +transpose(transpose(X,4) ,4) ) +transpose(X,7) ) ) ) +transpose((transpose(transpose(arpeggio(X) ,4) ,4) +transpose(transpose(X,-5) ,7) ) ,4) ) +transpose((transpose(((step(X,12) +transpose(echo(X,4,6) ,4) ) +transpose(X,7) ) ,4) |step(transpose(arpeggio(X) ,-5) ,12) ) ,7) ) +transpose(X,4) ) ,12) ) ) ,7) ) ) ,7) ) +transpose((((step(((shuffle(step((echo((X+transpose(X,12) ) ,4,6) +transpose((((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(echo(X,4,6) ,4) ) +transpose(X,7) ) +step((X+transpose(X,12) ) ,12) ) ,7) ) ,12) ) +transpose(((((transpose(step(X,12) ,-7) +transpose(shuffle(shuffle((X+transpose(X,12) ) ) ) ,12) ) |transpose(transpose(transpose(shuffle((((X+transpose(X,12) ) +transpose((X+transpose(X,12) ) ,4) ) +transpose(X,7) ) ) ,-5) ,-5) ,-7) ) +transpose(echo(shuffle(arpeggio(shuffle(shuffle(X) ) ) ) ,4,6) ,4) ) +transpose(transpose((transpose(transpose((echo((X+X) ,4,6) |step(X,12) ) ,4) ,-5) +echo(((X+transpose(X,4) ) +transpose(X,7) ) ,4,6) ) ,-7) ,7) ) ,7) ) +transpose((transpose(X,-7) +transpose((shuffle((step(X,12) +transpose(transpose(X,-7) ,7) ) ) |shuffle(X) ) ,12) ) ,7) ) ,12) +transpose(transpose((((transpose(((arpeggio((X+step(X,12) ) ) +transpose(step(transpose(X,-7) ,12) ,4) ) +transpose((((X+transpose(X,12) ) +transpose((X+transpose(X,7) ) ,7) ) +transpose(shuffle(X) ,7) ) ,7) ) ,4) +transpose(transpose(shuffle(X) ,-7) ,-5) ) +transpose(((transpose(((step((echo(X,4,6) +transpose((X+transpose(X,12) ) ,7) ) ,12) +(arpeggio(X) |X) ) +transpose(((echo(arpeggio(step(X,12) ) ,4,6) +transpose((((transpose(X,-5) +transpose(shuffle(X) ,12) ) +transpose((((echo(X,4,6) +transpose((X+X) ,4) ) +transpose(X,7) ) +X) ,4) ) +transpose(((X|X) +transpose((X+X) ,12) ) ,7) ) ,4) ) +transpose(step(shuffle(X) ,12) ,7) ) ,12) ) ,4) +transpose(shuffle(transpose(echo(((shuffle(((arpeggio(X) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ) +transpose(X,7) ) ) +transpose(transpose((X|X) ,-5) ,4) ) +transpose(X,7) ) ,4,6) ,-5) ) ,4) ) +transpose((step((X+transpose(X,7) ) ,12) +transpose(((((step((X+transpose(X,7) ) ,12) +transpose(((X+transpose(X,12) ) +arpeggio(X) ) ,12) ) +((transpose(X,4) +transpose(transpose(X,-7) ,7) ) +transpose(((transpose(X,4) +transpose(transpose(X,-7) ,4) ) +transpose(transpose(X,-7) ,7) ) ,12) ) ) +transpose(transpose(X,4) ,12) ) +(transpose((X|transpose(X,-5) ) ,4) +step(((X+X) +shuffle(X) ) ,12) ) ) ,7) ) ,7) ) ,7) ) |echo(shuffle((((((transpose((step(transpose(X,-7) ,12) +transpose((step(X,12) |step(X,12) ) ,7) ) ,-5) +transpose(echo((X+(X+X) ) ,4,6) ,7) ) +transpose((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ) ,4) ) +transpose(transpose((transpose((X+transpose(X,12) ) ,-7) +transpose((arpeggio(X) +((X+transpose(X,4) ) +transpose(X,7) ) ) ,-7) ) ,-5) ,7) ) +transpose((echo(step(X,12) ,4,6) +transpose(((X+transpose(X,12) ) +transpose(arpeggio(X) ,7) ) ,7) ) ,4) ) +transpose((step(arpeggio(transpose(step(X,12) ,4) ) ,12) +transpose(transpose((arpeggio(X) |echo(step(X,12) ,4,6) ) ,4) ,12) ) ,7) ) ) ,4,6) ) ,-7) ,7) ) +transpose((step(((((((((X+transpose(X,4) ) +transpose((X|X) ,7) ) +((arpeggio(X) +transpose(X,12) ) +transpose((X+arpeggio(X) ) ,12) ) ) +transpose((((transpose(shuffle(X) ,-7) +transpose(((X+transpose((X+transpose(X,7) ) ,4) ) +transpose(X,7) ) ,12) ) +transpose(echo(X,4,6) ,4) ) +transpose(((step(X,12) +transpose(X,4) ) +transpose((arpeggio(X) +X) ,7) ) ,7) ) ,7) ) +transpose(echo(((transpose((X+transpose(X,7) ) ,4) +transpose(arpeggio(transpose(X,-5) ) ,4) ) +transpose((echo(X,4,6) +X) ,7) ) ,4,6) ,7) ) +transpose((arpeggio(((shuffle(((X+X) +transpose(X,7) ) ) +transpose(((step(X,12) +transpose(arpeggio((X+X) ) ,4) ) +transpose(transpose(X,4) ,7) ) ,4) ) +transpose((transpose(X,-5) +transpose((X+X) ,7) ) ,7) ) ) +transpose((((transpose(((X+X) +transpose(X,7) ) ,4) +transpose(transpose(transpose(X,-7) ,-5) ,4) ) +transpose((arpeggio(X) +transpose(arpeggio(X) ,7) ) ,7) ) +transpose(((arpeggio(step(echo(X,4,6) ,12) ) +transpose(step(((X+transpose((arpeggio(X) +transpose((X+transpose(X,7) ) ,12) ) ,4) ) +transpose((transpose(X,-7) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) ,7) ) ,12) ,12) ) +transpose((X|X) ,7) ) ,12) ) ,12) ) ,12) ) +transpose(((echo(((((arpeggio(transpose((X+transpose(X,12) ) ,-5) ) +transpose((transpose(((shuffle((X|X) ) +transpose(transpose(X,4) ,4) ) +transpose((transpose(X,-5) +transpose((X+transpose(X,7) ) ,7) ) ,7) ) ,-5) +transpose(echo(shuffle(shuffle(X) ) ,4,6) ,7) ) ,4) ) +transpose((((X+transpose(X,7) ) +transpose(echo(((step(X,12) +transpose(X,4) ) +transpose(step(X,12) ,7) ) ,4,6) ,12) ) +transpose(((((X+X) |X) +transpose((X+transpose(X,12) ) ,12) ) +transpose((X+transpose((((X+transpose(X,4) ) +transpose(X,7) ) +X) ,7) ) ,7) ) ,7) ) ,7) ) +transpose(transpose(echo(arpeggio(arpeggio((X+transpose(X,12) ) ) ) ,4,6) ,-7) ,4) ) +transpose(shuffle(arpeggio(X) ) ,7) ) ,4,6) +transpose((((((((arpeggio(transpose(X,-5) ) |((X|X) +transpose(X,7) ) ) +(X+X) ) +transpose(echo(arpeggio(echo(X,4,6) ) ,4,6) ,4) ) +transpose(step(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-5) ,12) ,7) ) +transpose(((transpose(shuffle(X) ,-5) +transpose((transpose(X,-5) +transpose(step(shuffle(X) ,12) ,7) ) ,7) ) |((((arpeggio(X) +transpose(echo(X,4,6) ,4) ) +transpose(X,7) ) +transpose(echo((transpose(X,-5) |(arpeggio(X) +transpose(X,12) ) ) ,4,6) ,4) ) +transpose(transpose(echo(echo(X,4,6) ,4,6) ,-5) ,7) ) ) ,4) ) +transpose(transpose(arpeggio(arpeggio((arpeggio(X) +transpose(X,12) ) ) ) ,-7) ,7) ) +transpose(arpeggio(arpeggio(((X+transpose(X,7) ) +transpose((X+transpose(X,7) ) ,7) ) ) ) ,12) ) ,4) ) +transpose(echo(((echo(transpose(step((echo(X,4,6) +transpose(X,12) ) ,12) ,-5) ,4,6) +transpose(arpeggio(shuffle(shuffle(X) ) ) ,4) ) +transpose((((transpose(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-5) ,-5) +transpose(transpose(((X+transpose(X,7) ) +transpose((X+transpose(X,12) ) ,12) ) ,-7) ,4) ) +transpose(X,7) ) +transpose((step(((X+X) +(X+transpose(X,12) ) ) ,12) |(transpose(X,4) +transpose(transpose(X,-7) ,7) ) ) ,7) ) ,7) ) ,4,6) ,7) ) ,12) ) +shuffle((step((transpose((((X+transpose(X,12) ) +transpose(X,4) ) +transpose(X,7) ) ,4) +(echo(X,4,6) +transpose(step(X,12) ,12) ) ) ,12) +transpose(shuffle(((shuffle(X) |echo(X,4,6) ) +((((X+transpose((X+transpose(X,12) ) ,7) ) +transpose(echo(X,4,6) ,12) ) +transpose((((X+transpose(X,4) ) +transpose(X,7) ) |shuffle(X) ) ,4) ) +transpose(((transpose(X,4) +transpose(X,7) ) +transpose(echo((X+transpose(X,12) ) ,4,6) ,7) ) ,7) ) ) ) ,7) ) ) ) ,12) +transpose((transpose(((echo((X+transpose((((transpose(X,-7) +transpose(X,4) ) +transpose((X+X) ,7) ) +shuffle(transpose(X,4) ) ) ,12) ) ,4,6) +transpose(echo(step((X|step(X,12) ) ,12) ,4,6) ,12) ) +transpose(echo((((arpeggio(X) +transpose((step(X,12) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ) ,12) ) +transpose((arpeggio((shuffle(X) +transpose(X,12) ) ) +transpose(transpose((X|shuffle(((X+transpose(X,4) ) +transpose(X,7) ) ) ) ,4) ,12) ) ,4) ) +transpose((arpeggio(X) +transpose((transpose(X,4) +transpose(transpose(X,-7) ,7) ) ,7) ) ,7) ) ,4,6) ,7) ) ,-7) +transpose((shuffle(transpose(((step(((X+transpose(X,4) ) +transpose(X,7) ) ,12) +transpose(echo(transpose(transpose(X,4) ,4) ,4,6) ,12) ) +step(step(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ,12) ) ,4) ) +transpose(transpose(arpeggio(transpose(echo(shuffle(X) ,4,6) ,4) ) ,-7) ,12) ) ,12) ) ,7) ) ,4) ) +transpose(arpeggio(echo((((arpeggio(((((arpeggio((X+transpose(X,12) ) ) +arpeggio((X+X) ) ) +transpose(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ,4) ) +transpose(arpeggio(X) ,7) ) +transpose(shuffle(step(X,12) ) ,7) ) ) +transpose((((((((X+transpose(X,12) ) +transpose(arpeggio(X) ,12) ) +transpose((((X+transpose(X,4) ) +transpose(X,7) ) +transpose((X+transpose(X,12) ) ,12) ) ,4) ) +transpose((shuffle(X) |(X+X) ) ,7) ) +step(transpose(X,-5) ,12) ) +step((step(shuffle(X) ,12) +transpose(X,12) ) ,12) ) +transpose(transpose(step(X,12) ,4) ,12) ) ,12) ) +transpose(((arpeggio(((X+transpose((X+X) ,4) ) +transpose(transpose(step(X,12) ,-7) ,7) ) ) +transpose((((transpose(X,4) +step(((X|X) +transpose((X+transpose(X,12) ) ,12) ) ,12) ) +transpose((X+transpose(shuffle((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(step(X,12) ,12) ) ) ,12) ) ,7) ) +transpose((transpose((arpeggio(step(X,12) ) +transpose((X+transpose(X,7) ) ,7) ) ,-7) +transpose((step(((echo(X,4,6) +transpose(((X|X) +echo(X,4,6) ) ,4) ) +transpose(shuffle(X) ,7) ) ,12) +transpose(step(transpose((arpeggio(X) |(X+transpose(X,7) ) ) ,4) ,12) ,7) ) ,12) ) ,7) ) ,7) ) |(arpeggio(echo(X,4,6) ) +transpose(step(transpose(X,-5) ,12) ,12) ) ) ,4) ) +transpose(shuffle((shuffle((((shuffle(X) +transpose(X,7) ) +transpose(X,7) ) +transpose(arpeggio(transpose(X,-5) ) ,12) ) ) +transpose(echo(arpeggio(transpose(X,-5) ) ,4,6) ,12) ) ) ,7) ) ,4,6) ) ,7) ) ,12) ) ) ) +transpose((echo(transpose(arpeggio(transpose(transpose(((((transpose(arpeggio(((arpeggio(((X+transpose(X,4) ) +transpose(X,7) ) ) +transpose(((echo((X+X) ,4,6) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ) +transpose(X,7) ) ,4) ) +transpose(step(step(X,12) ,12) ,7) ) ) ,4) +transpose(shuffle((step(X,12) +transpose(arpeggio(X) ,7) ) ) ,12) ) +transpose(((arpeggio(((((X+transpose(arpeggio(X) ,4) ) +transpose(echo(X,4,6) ,7) ) +transpose((X+transpose(X,12) ) ,4) ) +transpose(((X+transpose(X,12) ) +transpose((X+transpose(X,7) ) ,7) ) ,7) ) ) +transpose((echo(X,4,6) +transpose(arpeggio(((X+transpose(X,4) ) +transpose(X,7) ) ) ,12) ) ,7) ) +transpose(transpose(shuffle((X+X) ) ,-5) ,12) ) ,7) ) +transpose(step(transpose(((echo((X|X) ,4,6) |(((X+transpose(X,12) ) +transpose(X,-7) ) +transpose((((X+transpose(X,4) ) +transpose(X,7) ) |X) ,7) ) ) +transpose(shuffle(echo(shuffle(X) ,4,6) ) ,12) ) ,-7) ,12) ,4) ) +transpose((transpose(echo(((transpose(X,4) +transpose(X,7) ) +transpose(echo(step(X,12) ,4,6) ,7) ) ,4,6) ,-7) +transpose(step((arpeggio(X) |shuffle((X+transpose(X,4) ) ) ) ,12) ,7) ) ,7) ) ,4) ,4) ) ,-5) ,4,6) +transpose((shuffle(echo((step(shuffle((echo(X,4,6) +(shuffle((X+X) ) +transpose(transpose((X|X) ,-5) ,7) ) ) ) ,12) +transpose(((X+transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ) +transpose((X+transpose(X,7) ) ,7) ) ,12) ) ,4,6) ) +transpose(arpeggio(transpose((echo(arpeggio(shuffle((X+transpose((X+transpose(X,7) ) ,7) ) ) ) ,4,6) +transpose((arpeggio(((echo(arpeggio((X+transpose(X,7) ) ) ,4,6) +transpose(step((X+transpose(X,7) ) ,12) ,7) ) +transpose((shuffle(X) +transpose(shuffle(X) ,12) ) ,12) ) ) +transpose(transpose(transpose(step(X,12) ,4) ,4) ,7) ) ,7) ) ,4) ) ,12) ) ,12) ) ,7) )
random seed used was 155704533

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