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:
# of Tracks:
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After 20 generations the expression "X" became this:
transpose((((echo(((((arpeggio(transpose(step(step(((step(X,12) +transpose(transpose(echo(X,4,6) ,-5) ,4) ) +transpose(transpose(transpose(X,-7) ,-5) ,7) ) ,12) ,12) ,-5) ) +transpose(step((((arpeggio(transpose((transpose(transpose(X,-7) ,4) +transpose((((transpose(arpeggio(X) ,-7) +step(X,12) ) +transpose((((X+transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ) +transpose((X|X) ,7) ) +transpose(shuffle(((X+transpose(X,4) ) +transpose(X,7) ) ) ,12) ) ,4) ) +transpose((X+echo(X,4,6) ) ,7) ) ,7) ) ,4) ) +transpose(step(step((((transpose(transpose(X,-7) ,-7) +transpose(echo(X,4,6) ,7) ) +transpose(step(((X+(X+transpose(X,7) ) ) +transpose((X+transpose((X|X) ,12) ) ,12) ) ,12) ,4) ) +transpose((((X+transpose(shuffle((X|X) ) ,7) ) +transpose((X+X) ,4) ) +transpose(step(X,12) ,7) ) ,7) ) ,12) ,12) ,7) ) +transpose((transpose(step(((echo(((X+transpose(X,4) ) +transpose(X,7) ) ,4,6) +transpose((arpeggio(X) |X) ,4) ) +transpose(X,7) ) ,12) ,-7) +transpose(((transpose(transpose(shuffle(X) ,-7) ,-7) +transpose(transpose((X+transpose((((X+transpose(X,4) ) +transpose(X,7) ) +(X|X) ) ,12) ) ,-7) ,7) ) +step((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(transpose(X,-5) ,7) ) ,12) ) ,12) ) ,4) ) +transpose(transpose((step(step((X+X) ,12) ,12) +transpose(step(arpeggio(((X+transpose(X,4) ) +transpose(X,7) ) ) ,12) ,7) ) ,-5) ,7) ) ,12) ,12) ) |arpeggio(((((transpose(arpeggio(step(X,12) ) ,-5) +transpose(step(transpose(shuffle(X) ,-7) ,12) ,7) ) +transpose(((transpose(echo((X+transpose(X,7) ) ,4,6) ,-7) +transpose(X,4) ) +transpose(arpeggio(shuffle(X) ) ,7) ) ,4) ) +transpose(echo(shuffle(echo(arpeggio(X) ,4,6) ) ,4,6) ,7) ) |((((transpose(((transpose(echo(X,4,6) ,-5) +transpose((arpeggio((X+transpose(X,7) ) ) +transpose(((X|X) +X) ,7) ) ,4) ) +transpose(((step(echo(X,4,6) ,12) +transpose(((X|X) +X) ,4) ) +transpose((arpeggio(X) +transpose(X,7) ) ,7) ) ,7) ) ,4) +transpose(((X|X) +transpose(transpose(arpeggio(X) ,-5) ,7) ) ,12) ) +transpose(step(step((arpeggio((X+transpose(X,7) ) ) |(X+transpose(X,7) ) ) ,12) ,12) ,4) ) +transpose((X+transpose(step(X,12) ,7) ) ,7) ) |((transpose(((shuffle(X) +transpose(arpeggio(shuffle(X) ) ,7) ) +transpose(arpeggio(((X|X) +step(X,12) ) ) ,7) ) ,4) +transpose(transpose(echo(transpose(transpose(X,4) ,-5) ,4,6) ,4) ,4) ) +transpose(((((X|(X|X) ) +echo((X+X) ,4,6) ) +transpose(((arpeggio((X+transpose(X,7) ) ) +transpose((step(X,12) +transpose(X,12) ) ,7) ) +shuffle(X) ) ,4) ) +transpose(step(((step(X,12) +transpose(X,4) ) +transpose(X,7) ) ,12) ,7) ) ,7) ) ) ) ) ) +transpose((shuffle(((echo((arpeggio(X) +transpose((step(((X+transpose(X,4) ) +transpose(X,7) ) ,12) +transpose(arpeggio(echo(X,4,6) ) ,12) ) ,7) ) ,4,6) +transpose(step(transpose(((shuffle(transpose((X+X) ,4) ) +transpose(shuffle(X) ,4) ) +transpose(((X|X) +transpose(transpose((X+transpose(X,7) ) ,4) ,12) ) ,7) ) ,-5) ,12) ,4) ) +transpose((((X+transpose((X|X) ,7) ) +transpose(X,4) ) +transpose(echo(echo(X,4,6) ,4,6) ,7) ) ,7) ) ) +(transpose(transpose((((arpeggio(step(((step(X,12) +transpose(((X+transpose(X,12) ) +transpose((X+transpose(X,7) ) ,12) ) ,4) ) +transpose(transpose((X+transpose(X,7) ) ,-7) ,7) ) ,12) ) +transpose(((transpose(X,-7) +transpose(((X+transpose(X,12) ) +transpose(X,12) ) ,4) ) +transpose(X,7) ) ,4) ) +transpose((echo((X+transpose(arpeggio(transpose(X,4) ) ,12) ) ,4,6) +transpose(((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(((transpose(X,-7) +transpose(X,4) ) +transpose((X+transpose(X,7) ) ,7) ) ,7) ) +transpose((step(X,12) +(X+transpose(X,12) ) ) ,7) ) ,7) ) ,7) ) |(arpeggio(shuffle(transpose(X,-7) ) ) +transpose(((((((X+transpose(X,12) ) +transpose((X+X) ,7) ) +transpose(X,12) ) +transpose((((X+transpose(X,7) ) +transpose(step(X,12) ,7) ) +transpose((X+transpose(step(X,12) ,12) ) ,12) ) ,7) ) +transpose(arpeggio(arpeggio(arpeggio(step(echo(X,4,6) ,12) ) ) ) ,4) ) +transpose(((X|(X+X) ) +transpose((X+transpose((((X+X) +transpose(transpose(X,4) ,4) ) +transpose((X+transpose(X,12) ) ,7) ) ,12) ) ,12) ) ,7) ) ,7) ) ) ,-7) ,-5) +transpose((step(((arpeggio((((transpose(X,4) +transpose(shuffle(X) ,7) ) +((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(arpeggio(X) ,4) ) +transpose(X,7) ) ) +transpose(transpose((X|X) ,-5) ,7) ) ) +(arpeggio((X+transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ) ) |(((transpose(X,-7) +transpose((((X+transpose(X,4) ) +transpose(X,7) ) +transpose((X+transpose(X,7) ) ,7) ) ,7) ) +transpose((X|(X|X) ) ,4) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) ) ) +transpose(((((transpose(X,-5) +(echo(X,4,6) +transpose(X,12) ) ) +transpose((echo(X,4,6) +transpose(transpose(X,-5) ,12) ) ,7) ) +transpose((transpose(((X+transpose(X,12) ) +transpose(X,7) ) ,-5) +transpose(arpeggio(X) ,12) ) ,4) ) +transpose(step(step((arpeggio(X) +transpose(X,4) ) ,12) ,12) ,7) ) ,12) ) ,12) +transpose((shuffle((arpeggio(step(transpose(echo(X,4,6) ,-7) ,12) ) +transpose(arpeggio(arpeggio(((X+transpose(X,4) ) +transpose(X,7) ) ) ) ,12) ) ) +((echo(transpose(((X+transpose(X,12) ) +transpose(X,12) ) ,4) ,4,6) |(((transpose(X,-5) +transpose((X+transpose(X,7) ) ,4) ) +transpose(X,7) ) |((X+transpose(X,4) ) +transpose(X,7) ) ) ) +transpose((shuffle(echo(((X+transpose(X,4) ) +transpose(X,7) ) ,4,6) ) +transpose(((arpeggio((X|X) ) +transpose(transpose(shuffle(X) ,4) ,4) ) +transpose(shuffle(X) ,7) ) ,7) ) ,7) ) ) ,7) ) ,7) ) ) ,4) ) +transpose(((step(arpeggio(((((transpose(transpose(echo(step(X,12) ,4,6) ,-7) ,-7) +transpose(shuffle(shuffle((X+transpose(X,7) ) ) ) ,4) ) +transpose((arpeggio((arpeggio(X) +transpose((X+X) ,7) ) ) +transpose(transpose((((arpeggio(echo(X,4,6) ) +transpose((X|X) ,4) ) +transpose(arpeggio(X) ,7) ) +transpose(echo(transpose(X,4) ,4,6) ,12) ) ,-5) ,12) ) ,7) ) +transpose(((arpeggio((X+transpose(X,7) ) ) |((X+transpose(X,12) ) +transpose(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ,7) ) ) +transpose((echo(echo(((X+transpose(X,4) ) +transpose(X,7) ) ,4,6) ,4,6) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-7) ) ,12) ) ,7) ) +transpose(step(step(echo(arpeggio((step((transpose(X,-7) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ) ,12) +transpose(transpose(X,-7) ,-5) ) ) ,4,6) ,12) ,12) ,12) ) ) ,12) +((((transpose((step(X,12) +transpose(step(echo(X,4,6) ,12) ,12) ) ,-7) +transpose((((X+transpose(X,12) ) +transpose(echo(arpeggio(transpose(X,-5) ) ,4,6) ,4) ) +transpose((arpeggio(X) +transpose(shuffle(X) ,12) ) ,7) ) ,4) ) +transpose((step((X+transpose(X,7) ) ,12) |transpose(transpose(X,4) ,4) ) ,7) ) |(transpose(X,-7) |((echo((X+X) ,4,6) +transpose(((((((X+transpose(X,12) ) |(X+((X+transpose(X,4) ) +transpose(X,7) ) ) ) +transpose(echo(X,4,6) ,4) ) +transpose(echo(((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(X,4) ) +transpose((X|X) ,7) ) ,4,6) ,7) ) +transpose((shuffle(X) |(transpose(X,-5) +X) ) ,4) ) +transpose(((((X+transpose(X,4) ) +transpose(X,7) ) +transpose((X+transpose(X,12) ) ,4) ) +transpose(step(X,12) ,7) ) ,7) ) ,4) ) +transpose(step(shuffle(X) ,12) ,7) ) ) ) +shuffle(((step((echo(X,4,6) |shuffle(step(X,12) ) ) ,12) +transpose((shuffle(((X+step(X,12) ) +transpose(X,7) ) ) +transpose((step(shuffle(X) ,12) +shuffle(arpeggio((X|X) ) ) ) ,7) ) ,7) ) +(((shuffle(X) |(X+X) ) +transpose((X+transpose(X,7) ) ,12) ) +transpose(transpose((echo(transpose(X,-5) ,4,6) +transpose(transpose(X,-5) ,12) ) ,4) ,12) ) ) ) ) ) |echo((((((transpose((step(X,12) +step(echo(X,4,6) ,12) ) ,4) +transpose(((X+transpose(X,7) ) +transpose(X,7) ) ,12) ) +transpose((echo(echo(X,4,6) ,4,6) +transpose((transpose((X+X) ,4) +transpose((X+transpose(X,7) ) ,7) ) ,7) ) ,12) ) +(echo(arpeggio(X) ,4,6) |arpeggio((shuffle(X) +transpose(X,12) ) ) ) ) +transpose(shuffle(((((shuffle((step(X,12) +transpose(X,12) ) ) +transpose(arpeggio((((X+transpose(transpose(X,-5) ,4) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) +transpose(step((X+transpose(X,7) ) ,12) ,7) ) ) ,7) ) +transpose(step((X+((X+transpose(X,4) ) +transpose(X,7) ) ) ,12) ,4) ) +transpose(transpose((((transpose(X,4) +transpose(X,7) ) +transpose((echo(X,4,6) +transpose(arpeggio((X+X) ) ,7) ) ,4) ) +transpose((X+X) ,7) ) ,4) ,7) ) +transpose(transpose(X,4) ,7) ) ) ,7) ) +transpose(shuffle(shuffle(shuffle(transpose(arpeggio(X) ,-7) ) ) ) ,4) ) ,4,6) ) ,7) ) ,4,6) +transpose(echo(step(((transpose((step(step(arpeggio((shuffle((((X+transpose(X,4) ) +transpose(X,7) ) |X) ) +echo((X|X) ,4,6) ) ) ,12) ,12) +transpose(transpose((((echo((X+transpose(((X+transpose(X,4) ) +transpose((X+transpose(X,7) ) ,7) ) ,12) ) ,4,6) +transpose((transpose(X,-7) +transpose((((transpose(X,4) +(X+transpose(X,7) ) ) +transpose(((arpeggio(X) +transpose(X,4) ) +transpose(shuffle(X) ,7) ) ,4) ) +transpose((((X|X) +transpose(X,4) ) +transpose(X,7) ) ,7) ) ,12) ) ,4) ) +transpose((((step(arpeggio(step(step(X,12) ,12) ) ,12) +transpose(echo(step((X|X) ,12) ,4,6) ,4) ) +transpose(echo((echo(X,4,6) +transpose((step(X,12) +transpose(X,7) ) ,7) ) ,4,6) ,7) ) +echo((X+step(step(X,12) ,12) ) ,4,6) ) ,7) ) +(((transpose((step(X,12) |(X+transpose(X,7) ) ) ,4) +transpose(transpose((echo(X,4,6) +transpose(arpeggio(X) ,7) ) ,-5) ,4) ) +transpose((shuffle((echo(X,4,6) +transpose(transpose(X,-5) ,7) ) ) +((X+transpose(transpose(X,4) ,4) ) +transpose(shuffle(X) ,7) ) ) ,7) ) +transpose(transpose(echo(X,4,6) ,4) ,12) ) ) ,-7) ,12) ) ,-5) +transpose(shuffle((arpeggio(step((shuffle(step(X,12) ) +transpose(X,7) ) ,12) ) +transpose(((((arpeggio(transpose(((transpose(X,4) +transpose(step(X,12) ,12) ) +transpose(X,7) ) ,-5) ) +transpose(shuffle((((((X+transpose((X|X) ,12) ) +transpose(echo((X|X) ,4,6) ,7) ) +transpose(shuffle((echo(X,4,6) +transpose(X,7) ) ) ,4) ) +transpose((X+transpose((echo((X+transpose(X,12) ) ,4,6) +X) ,7) ) ,7) ) +transpose(transpose((((transpose(X,-5) |(X+X) ) +transpose(X,7) ) +transpose(echo((X+transpose(X,12) ) ,4,6) ,7) ) ,4) ,7) ) ) ,4) ) +transpose(arpeggio((step(X,12) +transpose(echo(X,4,6) ,12) ) ) ,7) ) +transpose((arpeggio((echo(transpose((((X+transpose(X,12) ) +transpose(X,12) ) +transpose(X,7) ) ,4) ,4,6) +((echo(transpose(X,-5) ,4,6) +transpose(((transpose(X,-5) +transpose((arpeggio(X) +transpose((X+transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) ,7) ) ,4) ) +transpose(shuffle(((X+transpose(X,12) ) |(X+transpose(X,7) ) ) ) ,7) ) ,7) ) +transpose((((((step(X,12) +transpose(((transpose(X,4) +transpose((X+transpose(X,7) ) ,4) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) ,4) ) +transpose(X,7) ) +transpose((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(step(X,12) ,7) ) ,12) ) +transpose((shuffle(transpose(shuffle(X) ,-7) ) +transpose((shuffle(transpose(X,4) ) +transpose(transpose((X+transpose((X+transpose(X,12) ) ,12) ) ,-5) ,7) ) ,7) ) ,4) ) +transpose(shuffle(echo(echo(X,4,6) ,4,6) ) ,7) ) ,7) ) ) ) +transpose(transpose(transpose(((step(X,12) |transpose(transpose(transpose(X,-5) ,-7) ,-7) ) +transpose((((((arpeggio(X) +transpose(X,12) ) |(X+X) ) +transpose(((X+transpose(transpose((X+transpose(X,12) ) ,-7) ,4) ) +transpose(transpose(X,4) ,7) ) ,12) ) +((X+transpose((((X+transpose(transpose(X,-5) ,4) ) +transpose((X+transpose(X,12) ) ,7) ) +transpose(echo(X,4,6) ,12) ) ,4) ) +transpose(((X|X) +transpose(transpose(X,4) ,7) ) ,7) ) ) |(transpose(echo(X,4,6) ,4) +arpeggio((X+transpose(transpose((X+transpose(X,12) ) ,4) ,12) ) ) ) ) ,12) ) ,-7) ,-7) ,7) ) ,4) ) +transpose(((((((X+transpose(X,12) ) +transpose(((transpose(X,-5) +transpose(X,4) ) +transpose(transpose((X+transpose(X,12) ) ,-7) ,7) ) ,4) ) +transpose(shuffle(((X+X) +arpeggio(X) ) ) ,7) ) +transpose(((((transpose((X+X) ,-7) +(X+transpose(transpose(X,-5) ,12) ) ) +(X|X) ) +transpose(arpeggio(X) ,4) ) +transpose(step((X+X) ,12) ,7) ) ,7) ) +transpose(transpose((shuffle(shuffle(X) ) +transpose((X+X) ,12) ) ,-7) ,4) ) +transpose((transpose(step((X+transpose(X,7) ) ,12) ,-5) |(transpose((((X+transpose(shuffle(X) ,4) ) +transpose(X,7) ) +transpose(transpose(X,-5) ,7) ) ,-7) +(shuffle(X) +shuffle(((X+transpose(X,4) ) +transpose(X,7) ) ) ) ) ) ,7) ) ,7) ) ,7) ) ) ,4) ) +transpose(echo(((transpose(((transpose(shuffle(echo((X|X) ,4,6) ) ,-5) +transpose(arpeggio(((shuffle((X+transpose(X,7) ) ) +transpose(X,7) ) +transpose(((((X+transpose(X,4) ) +transpose(X,7) ) +(X+transpose(X,12) ) ) +transpose(transpose(X,-7) ,7) ) ,7) ) ) ,4) ) +transpose(step(echo(transpose(echo(X,4,6) ,-5) ,4,6) ,12) ,7) ) ,4) +transpose(arpeggio((((transpose((echo(X,4,6) |arpeggio(X) ) ,-7) +transpose((step(transpose((X+X) ,-7) ,12) +transpose(transpose(transpose(shuffle(X) ,4) ,-7) ,12) ) ,4) ) +transpose(shuffle((((X+transpose(X,4) ) +transpose(X,7) ) |(transpose(X,4) +transpose(arpeggio(X) ,7) ) ) ) ,7) ) |((transpose(X,-5) +transpose(transpose(step((X+transpose(X,12) ) ,12) ,4) ,12) ) +transpose((step(shuffle(X) ,12) +transpose(((X+transpose((X+transpose(X,12) ) ,4) ) +transpose(transpose(X,-5) ,7) ) ,12) ) ,12) ) ) ) ,7) ) +transpose(arpeggio(echo(step((echo(X,4,6) +transpose(transpose(((transpose(shuffle(X) ,-7) +transpose((X+X) ,4) ) +transpose((echo(X,4,6) +transpose((X+X) ,7) ) ,7) ) ,-7) ,12) ) ,12) ,4,6) ) ,12) ) ,4,6) ,7) ) ,12) ,4,6) ,7) ) +transpose(arpeggio((((transpose((transpose((step(echo(transpose(X,4) ,4,6) ,12) |((transpose(echo((shuffle(((((X+transpose(X,4) ) +transpose(X,7) ) +transpose((shuffle(X) +transpose(X,7) ) ,4) ) +transpose((echo(X,4,6) +transpose(X,12) ) ,7) ) ) |step((((X+transpose(X,7) ) +transpose(shuffle(X) ,4) ) +transpose((X+X) ,7) ) ,12) ) ,4,6) ,-5) +transpose(arpeggio((transpose(arpeggio(X) ,4) +transpose((((X|X) +transpose((echo(X,4,6) +transpose((X+transpose(X,7) ) ,12) ) ,7) ) +transpose(transpose((X+transpose(X,7) ) ,4) ,12) ) ,7) ) ) ,4) ) +transpose(arpeggio(((step(arpeggio(echo(X,4,6) ) ,12) +transpose(transpose((echo(X,4,6) |(X+transpose(X,12) ) ) ,-7) ,4) ) +transpose(shuffle((X+X) ) ,7) ) ) ,7) ) ) ,-5) +transpose((step(transpose(step(echo(shuffle(echo(((X+transpose(X,12) ) +transpose((((X|X) +transpose(echo(X,4,6) ,4) ) +transpose((X+X) ,7) ) ,7) ) ,4,6) ) ,4,6) ,12) ,-5) ,12) +transpose(arpeggio(step(step((((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(X,7) ) +transpose((((transpose(transpose(X,4) ,-7) +transpose(((X|shuffle(X) ) +echo(step(X,12) ,4,6) ) ,7) ) +transpose(X,4) ) +transpose((transpose(X,-7) +transpose((((X+transpose(X,4) ) +transpose(transpose(X,4) ,7) ) |X) ,7) ) ,7) ) ,4) ) +transpose(((((X+transpose(X,7) ) +step(X,12) ) |arpeggio(X) ) +transpose((((((X|X) +transpose(echo(X,4,6) ,12) ) +transpose(shuffle(X) ,4) ) +transpose((arpeggio(X) +transpose(transpose(X,4) ,7) ) ,7) ) +transpose(echo(X,4,6) ,7) ) ,12) ) ,7) ) ,12) ,12) ) ,12) ) ,12) ) ,-5) +transpose(((((((echo(echo(transpose((X+X) ,-5) ,4,6) ,4,6) +transpose(step(arpeggio(transpose((arpeggio((((step(X,12) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ) +transpose(arpeggio(X) ,7) ) +transpose(transpose(transpose(X,-5) ,4) ,12) ) ) +transpose(((X+shuffle(shuffle(X) ) ) +transpose(transpose(transpose(((X|X) +transpose((X|X) ,12) ) ,-5) ,-7) ,12) ) ,12) ) ,-7) ) ,12) ,4) ) +transpose(shuffle(((shuffle(shuffle(arpeggio(X) ) ) +transpose(echo((X+X) ,4,6) ,7) ) +transpose(transpose((((step((X+X) ,12) |((X+transpose(X,7) ) +(X+X) ) ) +transpose(transpose((X+transpose(X,7) ) ,4) ,7) ) +transpose(((X+X) +transpose(((((X+transpose(X,12) ) +transpose(X,12) ) +transpose(transpose(X,-5) ,4) ) +transpose(shuffle(((X+transpose(X,4) ) +transpose(X,7) ) ) ,7) ) ,7) ) ,7) ) ,-5) ,7) ) ) ,7) ) +echo(transpose(step((shuffle(X) +transpose((shuffle((X+transpose(X,7) ) ) +transpose(echo(X,4,6) ,12) ) ,12) ) ,12) ,4) ,4,6) ) +transpose((step((shuffle(((((X|X) +X) +transpose(X,4) ) +transpose(arpeggio(transpose(X,-7) ) ,7) ) ) +transpose(transpose((shuffle((X+transpose(X,7) ) ) +transpose(shuffle(shuffle(transpose(echo(X,4,6) ,4) ) ) ,7) ) ,-7) ,12) ) ,12) +transpose(shuffle((((shuffle((echo((((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(X,4) ) +transpose((X+transpose(X,12) ) ,7) ) +transpose(X,12) ) ,4,6) +transpose((transpose(shuffle(step(X,12) ) ,-5) +transpose(transpose(transpose((((X|X) +transpose(echo(X,4,6) ,4) ) +transpose(X,7) ) ,4) ,-7) ,7) ) ,7) ) ) +transpose((transpose(shuffle(((arpeggio((X+transpose(X,7) ) ) +transpose(echo(X,4,6) ,4) ) +transpose((X+X) ,7) ) ) ,-7) |(arpeggio((echo(X,4,6) |echo(transpose((X+transpose(X,12) ) ,-7) ,4,6) ) ) +transpose((transpose(((X+transpose((X+transpose(X,7) ) ,4) ) +transpose(X,7) ) ,4) +transpose(echo(arpeggio(X) ,4,6) ,12) ) ,7) ) ) ,4) ) +transpose((echo(arpeggio((X+transpose(X,7) ) ) ,4,6) +transpose(((transpose(((arpeggio(step(X,12) ) +transpose((X+transpose(X,12) ) ,-5) ) +transpose((X+(X+transpose(X,12) ) ) ,7) ) ,4) +transpose(echo((arpeggio((X+transpose(X,7) ) ) +transpose((X+transpose(X,7) ) ,12) ) ,4,6) ,4) ) +transpose((((X+transpose(X,7) ) +transpose(echo(transpose(step(X,12) ,4) ,4,6) ,4) ) +transpose(step(step((X+X) ,12) ,12) ,7) ) ,7) ) ,12) ) ,7) ) +transpose((transpose(((echo(X,4,6) +transpose(shuffle(((X+transpose(transpose(X,-7) ,12) ) +transpose((X+transpose(X,7) ) ,12) ) ) ,4) ) +transpose(echo(echo(X,4,6) ,4,6) ,7) ) ,4) +transpose(((echo(X,4,6) +transpose(shuffle((step((echo(X,4,6) |X) ,12) +transpose((transpose(X,-5) +transpose((transpose(X,4) +transpose(X,7) ) ,12) ) ,12) ) ) ,4) ) +transpose(echo(step(((((X+X) |X) |(X+transpose(X,12) ) ) +(((X+X) +transpose((X+transpose(X,12) ) ,4) ) +transpose(transpose(X,4) ,7) ) ) ,12) ,4,6) ,7) ) ,12) ) ,12) ) ) ,12) ) ,4) ) +transpose(transpose(transpose(((((echo(X,4,6) +transpose(echo(arpeggio(shuffle(X) ) ,4,6) ,7) ) +(transpose(X,4) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ) ) +transpose((shuffle(((X+transpose(X,12) ) +(X+transpose(X,12) ) ) ) +transpose((transpose(transpose(X,-7) ,4) +arpeggio(step(step(X,12) ,12) ) ) ,12) ) ,4) ) +transpose(step(echo(X,4,6) ,12) ,7) ) ,-5) ,-7) ,7) ) +transpose(((transpose((transpose((transpose(echo(echo(shuffle(step(X,12) ) ,4,6) ,4,6) ,4) |arpeggio(echo((transpose(X,-5) +(shuffle(((X+transpose(X,4) ) +transpose(X,7) ) ) |echo(echo(X,4,6) ,4,6) ) ) ,4,6) ) ) ,4) +transpose(((transpose(transpose((((X+transpose(transpose(X,-5) ,4) ) +transpose(X,7) ) +transpose((X+transpose(transpose(X,4) ,7) ) ,7) ) ,4) ,-7) |step(step(((X+transpose(X,12) ) +transpose(echo(X,4,6) ,12) ) ,12) ,12) ) |echo(shuffle(step(transpose(((transpose(X,-7) +transpose(step(X,12) ,4) ) +transpose(arpeggio(X) ,7) ) ,4) ,12) ) ,4,6) ) ,12) ) ,4) +transpose((step((((echo(((X+transpose(X,4) ) +transpose(X,7) ) ,4,6) +((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(X,7) ) +transpose(((transpose(X,-7) +transpose(X,4) ) +transpose(transpose(X,-5) ,7) ) ,12) ) ) +transpose(((step(X,12) +transpose(transpose(X,-7) ,12) ) +transpose(((shuffle(echo(X,4,6) ) |X) +transpose(echo(X,4,6) ,12) ) ,12) ) ,7) ) +(shuffle(((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(X,7) ) |step(transpose(X,4) ,12) ) ) +transpose(((echo(echo(arpeggio(step(X,12) ) ,4,6) ,4,6) +transpose((step(((X+transpose(X,7) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) ,12) +transpose((step(echo((X|X) ,4,6) ,12) +transpose(shuffle((((X|X) +transpose(transpose(X,-7) ,4) ) +transpose(X,7) ) ) ,7) ) ,7) ) ,4) ) +transpose(transpose((X+transpose(shuffle(X) ,7) ) ,4) ,7) ) ,12) ) ) ,12) +transpose((transpose(arpeggio(shuffle(X) ) ,-5) +transpose((((transpose(step(X,12) ,-5) +transpose((echo((transpose(echo(X,4,6) ,-5) |arpeggio(echo(X,4,6) ) ) ,4,6) +transpose((echo(X,4,6) +transpose(shuffle(X) ,7) ) ,7) ) ,4) ) +transpose(step(((transpose(X,-7) +transpose(shuffle(X) ,4) ) +transpose(echo(echo(arpeggio(X) ,4,6) ,4,6) ,7) ) ,12) ,7) ) |arpeggio(((echo(transpose(X,4) ,4,6) +transpose(transpose(((X+transpose(X,7) ) +transpose((X|(X+transpose(X,7) ) ) ,12) ) ,4) ,7) ) +transpose(transpose(step((X+transpose(X,12) ) ,12) ,4) ,12) ) ) ) ,7) ) ,12) ) ,4) ) +transpose(((((X+transpose((X+transpose(X,7) ) ,12) ) +transpose(transpose(shuffle(X) ,-5) ,7) ) +(((step((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(transpose(X,-5) ,7) ) ,12) +transpose(echo(X,4,6) ,12) ) +transpose(shuffle(step(X,12) ) ,4) ) +transpose(arpeggio((((shuffle(X) +transpose(echo(X,4,6) ,7) ) +transpose(transpose(X,-5) ,4) ) +transpose(echo(transpose((X+X) ,-7) ,4,6) ,7) ) ) ,7) ) ) |transpose(transpose(echo(echo((step(echo(((X+transpose(X,4) ) +transpose(X,7) ) ,4,6) ,12) +transpose(((X+transpose((X+X) ,7) ) +transpose(arpeggio(arpeggio(X) ) ,7) ) ,7) ) ,4,6) ,4,6) ,-7) ,4) ) ,7) ) ,7) ) ,7) ) +transpose(shuffle((transpose(transpose(transpose((((shuffle(((transpose(echo(X,4,6) ,4) +transpose(((shuffle((X+transpose(X,12) ) ) +transpose(transpose(transpose(X,4) ,4) ,4) ) +transpose((X+transpose(X,12) ) ,7) ) ,4) ) +transpose((((((X+transpose(X,12) ) +transpose((X+transpose(X,12) ) ,4) ) +transpose(X,7) ) +transpose(transpose(X,-7) ,4) ) +transpose(arpeggio(transpose(X,4) ) ,7) ) ,7) ) ) +transpose((((echo(X,4,6) +transpose((X+transpose(X,12) ) ,7) ) +transpose(transpose(X,-7) ,7) ) +transpose((((transpose(transpose(X,-7) ,-5) +transpose(((echo(X,4,6) +transpose(X,4) ) +transpose(X,7) ) ,7) ) +transpose(((shuffle(X) +transpose((X+transpose(X,7) ) ,4) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) ,4) ) +transpose((transpose(X,4) +transpose(echo(X,4,6) ,12) ) ,7) ) ,7) ) ,4) ) +transpose((shuffle(transpose((X+transpose(X,12) ) ,-5) ) +transpose(shuffle(arpeggio(echo(X,4,6) ) ) ,7) ) ,7) ) |(((arpeggio(step(X,12) ) +transpose((arpeggio(X) +transpose(transpose(X,4) ,7) ) ,7) ) +transpose((X+transpose(X,7) ) ,12) ) +(((X+transpose((X|X) ,4) ) +transpose((X+transpose(X,7) ) ,7) ) +transpose(shuffle(arpeggio(X) ) ,12) ) ) ) ,4) ,-7) ,-7) |((((transpose(transpose((echo(X,4,6) +transpose(transpose(step(X,12) ,4) ,12) ) ,-7) ,4) +transpose(echo(transpose(echo(arpeggio(step((X+X) ,12) ) ,4,6) ,4) ,4,6) ,7) ) |transpose((shuffle(transpose(((X+transpose((X+X) ,12) ) +transpose(shuffle((X+X) ) ,12) ) ,4) ) +transpose(transpose(step(X,12) ,-5) ,12) ) ,-7) ) +transpose((echo((step((arpeggio(((transpose(X,-7) |X) |(((X|X) +transpose((X+X) ,12) ) +transpose(shuffle(X) ,12) ) ) ) +transpose(((echo((X+X) ,4,6) |X) +transpose((shuffle(X) |arpeggio(X) ) ,12) ) ,12) ) ,12) +transpose((arpeggio(transpose(transpose(X,-7) ,-5) ) +transpose((((X+transpose(transpose(X,-7) ,4) ) +transpose(arpeggio((X+X) ) ,7) ) |(step((X+transpose(X,12) ) ,12) +transpose(transpose(transpose(shuffle(shuffle(X) ) ,4) ,-7) ,12) ) ) ,12) ) ,7) ) ,4,6) +transpose(arpeggio(arpeggio((transpose((X+transpose(X,12) ) ,-5) +arpeggio((X+transpose(X,7) ) ) ) ) ) ,7) ) ,4) ) +transpose((step(transpose(((((X+transpose(transpose(X,-5) ,4) ) +transpose(step((X|X) ,12) ,7) ) +transpose(arpeggio(transpose(X,4) ) ,12) ) +transpose((shuffle(X) +transpose((X+transpose(X,12) ) ,12) ) ,12) ) ,-7) ,12) +transpose(((echo(echo((step(X,12) +X) ,4,6) ,4,6) +transpose(transpose(((arpeggio(X) +transpose(X,7) ) +transpose(transpose(X,-7) ,12) ) ,-7) ,4) ) +transpose(transpose(((shuffle(shuffle(((X+transpose(X,12) ) +transpose(X,12) ) ) ) +transpose(arpeggio((X+(transpose(X,4) +transpose(echo(X,4,6) ,7) ) ) ) ,4) ) +transpose(shuffle(shuffle(transpose(X,-5) ) ) ,7) ) ,-7) ,7) ) ,7) ) ,7) ) ) ) ,4) ) +transpose(transpose(transpose(shuffle(shuffle((shuffle(step(((X+transpose(X,12) ) |(transpose(X,4) +transpose((X+X) ,7) ) ) ,12) ) +(shuffle(transpose(((((arpeggio(X) +transpose(step(X,12) ,12) ) +transpose(echo((X+transpose(X,7) ) ,4,6) ,4) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) +transpose(arpeggio(arpeggio(X) ) ,12) ) ,-7) ) +transpose(shuffle(((X+transpose((X+X) ,4) ) +transpose(X,7) ) ) ,12) ) ) ) ) ,-7) ,-7) ,7) ) ) ,7) ) |echo((transpose(transpose((transpose(transpose(X,4) ,-5) +(((step((X+transpose(X,7) ) ,12) +transpose(arpeggio(X) ,7) ) +transpose((transpose(X,-5) +transpose(X,7) ) ,7) ) |(echo(((X+transpose(X,12) ) +transpose(X,12) ) ,4,6) +transpose((shuffle(arpeggio(((X+transpose(X,4) ) +transpose(X,7) ) ) ) +transpose(step(X,12) ,-5) ) ,7) ) ) ) ,-7) ,-5) |arpeggio(transpose(((((((((X+transpose(echo(X,4,6) ,7) ) +transpose(X,7) ) |(X+X) ) +transpose(((transpose(((echo((X|X) ,4,6) +((X+transpose(X,12) ) +transpose((step(X,12) +X) ,12) ) ) +transpose(echo(transpose(transpose(transpose(X,-5) ,-5) ,4) ,4,6) ,7) ) ,-5) +transpose(arpeggio(arpeggio((transpose(step(X,12) ,4) |X) ) ) ,4) ) +transpose(arpeggio(shuffle(((transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-7) +transpose(arpeggio(X) ,4) ) +transpose((X|X) ,7) ) ) ) ,7) ) ,7) ) +transpose((step((echo(step(step(transpose(X,4) ,12) ,12) ,4,6) |(transpose(step(transpose((X|X) ,4) ,12) ,4) +transpose(transpose((((X+transpose((X+transpose(X,7) ) ,7) ) +transpose(X,4) ) +transpose((((X+transpose(X,12) ) +transpose(X,4) ) +transpose(X,7) ) ,7) ) ,-5) ,7) ) ) ,12) |(echo(shuffle(((X|X) |echo(transpose(X,-5) ,4,6) ) ) ,4,6) +step((transpose(transpose((X+transpose(X,7) ) ,-5) ,4) +transpose(shuffle(transpose(X,4) ) ,12) ) ,12) ) ) ,4) ) +transpose(step(((arpeggio(arpeggio((X+transpose(X,7) ) ) ) +transpose((echo(echo(step(X,12) ,4,6) ,4,6) +transpose((((X+transpose(X,4) ) +transpose(X,7) ) |(((X+transpose(X,4) ) +transpose(X,7) ) +transpose(arpeggio(X) ,12) ) ) ,7) ) ,4) ) +transpose(echo(step(transpose((X+transpose(X,12) ) ,-7) ,12) ,4,6) ,7) ) ,12) ,7) ) +transpose((((transpose(arpeggio(arpeggio(X) ) ,4) +transpose(((transpose(transpose((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(X,12) ) ,-7) ,-7) +transpose(step((((X+transpose(X,7) ) +transpose(step(transpose(X,4) ,12) ,4) ) +transpose((echo(X,4,6) +transpose(X,7) ) ,7) ) ,12) ,4) ) +transpose(((step(X,12) +transpose(shuffle(X) ,4) ) +transpose(transpose(step(X,12) ,-5) ,7) ) ,7) ) ,12) ) +transpose((echo((transpose((X+transpose(X,7) ) ,-5) +((((X|(X+transpose(X,7) ) ) +transpose(((X+transpose(step(X,12) ,4) ) +transpose(X,7) ) ,4) ) +transpose((transpose(X,-7) +X) ,7) ) +transpose(transpose((X+transpose(X,12) ) ,-7) ,7) ) ) ,4,6) +step((X+X) ,12) ) ,12) ) +(((((((shuffle(arpeggio(step(X,12) ) ) +transpose(arpeggio(((X|X) +transpose((X+transpose(X,12) ) ,7) ) ) ,4) ) +transpose(transpose((X+transpose(transpose(X,4) ,7) ) ,-7) ,7) ) +transpose(echo(X,4,6) ,4) ) +transpose(echo(X,4,6) ,7) ) +transpose((shuffle(echo((X+transpose(X,12) ) ,4,6) ) +transpose(((X+transpose(X,4) ) +transpose(arpeggio((echo(X,4,6) +transpose((X+transpose(X,7) ) ,12) ) ) ,7) ) ,12) ) ,12) ) +transpose(((((step(X,12) +transpose((transpose(X,4) +transpose(X,-7) ) ,12) ) +((((shuffle(X) +transpose(X,4) ) +transpose((X+transpose(X,7) ) ,7) ) +transpose((X+transpose(X,12) ) ,7) ) |(((X+X) +transpose(X,12) ) +transpose(arpeggio(X) ,12) ) ) ) +transpose(arpeggio(transpose((X+transpose(X,7) ) ,-7) ) ,4) ) +transpose(arpeggio(((shuffle(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-5) ) +transpose(((arpeggio(X) +transpose(transpose(X,4) ,4) ) +transpose(X,7) ) ,4) ) +transpose(X,7) ) ) ,7) ) ,4) ) +transpose(transpose(step(((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(((X+transpose(X,7) ) +transpose((X+transpose(X,7) ) ,7) ) ,4) ) +transpose(transpose(arpeggio(X) ,-5) ,7) ) ,12) ,-5) ,7) ) ) ,4) ) +transpose(transpose(echo((X+transpose(X,12) ) ,4,6) ,-7) ,7) ) ,-7) ) ) ,4,6) ) ,-7)
random seed used was 2

NOTE: Generated phrase was too large ( 27524 ) , it has been truncated at 5000 notes.


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