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(echo((transpose(shuffle((((((transpose((echo((((echo(transpose(X,-7) ,4,6) +((X+transpose(X,7) ) +transpose(X,12) ) ) |transpose(transpose(X,-7) ,-7) ) |((((transpose(X,-7) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ) +transpose(step(X,12) ,7) ) +transpose((transpose(echo(X,4,6) ,-7) +transpose(step(X,12) ,7) ) ,4) ) +transpose(((X+transpose(X,7) ) +transpose(shuffle((X|X) ) ,12) ) ,7) ) ) ,4,6) +transpose(step(arpeggio(arpeggio((arpeggio(X) +transpose(arpeggio(shuffle(X) ) ,12) ) ) ) ,12) ,12) ) ,-7) |(step(transpose(shuffle(transpose(echo(transpose(X,4) ,4,6) ,-7) ) ,-7) ,12) +transpose(((step(transpose((X+step(X,12) ) ,4) ,12) +transpose(transpose(step(((echo(echo(X,4,6) ,4,6) +transpose((X+transpose(X,12) ) ,12) ) +(((X+transpose((X+transpose(X,7) ) ,4) ) +transpose(step(transpose(X,4) ,12) ,7) ) +transpose((((X+transpose(X,12) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ) +echo(X,4,6) ) ,7) ) ) ,12) ,-5) ,12) ) |echo((transpose((echo((echo(X,4,6) |(X+transpose(X,7) ) ) ,4,6) +transpose(transpose(echo(((X+transpose(X,4) ) +transpose(X,7) ) ,4,6) ,-7) ,7) ) ,-7) |arpeggio(((shuffle((X|X) ) |(transpose(X,-7) +transpose(X,7) ) ) +transpose(arpeggio(transpose((X|X) ,4) ) ,7) ) ) ) ,4,6) ) ,7) ) ) +transpose(transpose(transpose(transpose(transpose((((transpose(step(X,12) ,-7) +transpose((arpeggio(X) +transpose(X,12) ) ,4) ) +transpose(((transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-7) +transpose(transpose(((X+transpose(X,7) ) +X) ,-7) ,4) ) +transpose(transpose(echo(arpeggio(X) ,4,6) ,-7) ,7) ) ,7) ) +(transpose((transpose((X+X) ,-7) +transpose(X,12) ) ,-7) +transpose(shuffle((X+transpose(X,7) ) ) ,7) ) ) ,-7) ,-5) ,-5) ,-7) ,4) ) +transpose((((arpeggio((echo(transpose((X+transpose(X,12) ) ,4) ,4,6) +transpose(transpose((X+transpose(X,12) ) ,4) ,7) ) ) +transpose(transpose(((((arpeggio(step((X+transpose(X,7) ) ,12) ) +transpose(transpose(((X+transpose(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-7) ,4) ) +transpose(((transpose(X,-7) +transpose(X,4) ) +transpose(X,7) ) ,7) ) ,-7) ,4) ) +transpose(((X+transpose(X,12) ) +transpose(shuffle(X) ,-7) ) ,7) ) +arpeggio((transpose(transpose(X,-7) ,-7) +transpose(shuffle((echo(X,4,6) +transpose((X+transpose(X,7) ) ,12) ) ) ,12) ) ) ) |((echo((X+transpose(shuffle(X) ,7) ) ,4,6) +transpose(((transpose((X+X) ,-7) +transpose((X+X) ,4) ) +transpose(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-7) ,7) ) ,7) ) +transpose(shuffle(((X+transpose(X,7) ) |X) ) ,7) ) ) ,-7) ,7) ) +transpose(echo(transpose(((step(echo(transpose((X+transpose((X|X) ,7) ) ,-5) ,4,6) ,12) +transpose(echo(shuffle(transpose(X,-5) ) ,4,6) ,7) ) +transpose(step(((X+transpose(X,12) ) +transpose(transpose(echo(X,4,6) ,-5) ,7) ) ,12) ,7) ) ,-7) ,4,6) ,4) ) +transpose(transpose(((transpose((arpeggio(transpose(X,-7) ) +transpose(((X+transpose(X,12) ) +transpose((X+transpose(X,12) ) ,12) ) ,12) ) ,-5) +transpose(((step(step(X,12) ,12) +transpose((shuffle(X) +transpose((X+transpose(step(X,12) ,7) ) ,7) ) ,12) ) +transpose(echo(arpeggio(X) ,4,6) ,12) ) ,12) ) +transpose((((X+transpose(X,7) ) +transpose(transpose(shuffle(transpose((X+transpose(X,12) ) ,-7) ) ,-7) ,12) ) |(transpose(shuffle(X) ,-7) +transpose(transpose((X|arpeggio(X) ) ,-7) ,7) ) ) ,7) ) ,4) ,7) ) ,7) ) +transpose(step(arpeggio(transpose(((((X+transpose(X,7) ) |(X+transpose(X,12) ) ) +transpose(arpeggio(step(X,12) ) ,12) ) +transpose((step(((transpose(X,-7) +transpose(transpose(transpose(X,-7) ,-7) ,4) ) +transpose(((X|X) +X) ,7) ) ,12) +echo(transpose((X+transpose(X,7) ) ,-7) ,4,6) ) ,12) ) ,-7) ) ,12) ,4) ) +transpose(shuffle(((echo(arpeggio(((step(echo(transpose(X,4) ,4,6) ,12) +transpose((echo(arpeggio(echo(X,4,6) ) ,4,6) +((X|X) +transpose(echo(X,4,6) ,12) ) ) ,4) ) +transpose(((transpose(X,-7) +transpose(shuffle(X) ,4) ) +transpose(shuffle(step(X,12) ) ,7) ) ,7) ) ) ,4,6) +transpose((transpose(((((X+transpose(X,7) ) +X) +transpose(step(transpose(X,4) ,12) ,7) ) +(transpose(X,-7) +X) ) ,4) +transpose(((arpeggio(transpose(X,-5) ) |transpose((step((X+transpose(X,7) ) ,12) |((echo(X,4,6) +transpose(shuffle(X) ,12) ) |shuffle(X) ) ) ,-7) ) +transpose(arpeggio(shuffle(((X|(X+X) ) +(shuffle(X) |X) ) ) ) ,-7) ) ,7) ) ,7) ) |shuffle((shuffle(transpose(shuffle(step(shuffle(X) ,12) ) ,-7) ) +(transpose(((X+transpose(X,7) ) |step(((transpose(X,-7) +transpose(arpeggio(X) ,4) ) +transpose(arpeggio(X) ,7) ) ,12) ) ,-5) |transpose(transpose((shuffle(((X+transpose(X,4) ) +transpose(X,7) ) ) +transpose(transpose((((X+transpose(X,4) ) +transpose(X,7) ) +transpose((X+transpose(X,12) ) ,12) ) ,4) ,12) ) ,-5) ,4) ) ) ) ) ) ,7) ) ) ,-7) +(echo(((((echo((((X+transpose((X+transpose(X,12) ) ,4) ) +transpose(arpeggio(X) ,7) ) |(((X+transpose(X,4) ) +transpose(X,7) ) +transpose(transpose((X+transpose(X,7) ) ,4) ,7) ) ) ,4,6) +transpose(echo(transpose((X+X) ,-7) ,4,6) ,4) ) +transpose(transpose((step((echo((X|X) ,4,6) +transpose(transpose(echo(X,4,6) ,-7) ,7) ) ,12) +transpose(step(transpose(X,-7) ,12) ,12) ) ,-7) ,7) ) +transpose(transpose(step(transpose((transpose(step((((X|arpeggio(X) ) +transpose(echo((X+transpose(X,7) ) ,4,6) ,4) ) +transpose(transpose(X,-7) ,7) ) ,12) ,-7) +transpose((((echo(arpeggio((transpose(X,-5) +(X+X) ) ) ,4,6) +transpose(echo(((X+transpose(X,7) ) +transpose(shuffle(X) ,12) ) ,4,6) ,7) ) +transpose((((transpose(X,-7) +transpose(transpose(X,-5) ,7) ) |(echo(X,4,6) |(X+transpose(X,7) ) ) ) +transpose(transpose(((X+transpose(transpose(X,-7) ,12) ) +transpose(transpose(shuffle(X) ,4) ,12) ) ,-7) ,12) ) ,4) ) +transpose(transpose((transpose(((X+transpose(X,12) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ) ,-7) +transpose((((X+transpose(X,12) ) +transpose((arpeggio(X) +(X+transpose(X,7) ) ) ,4) ) +transpose((echo(X,4,6) +transpose(step(X,12) ,7) ) ,7) ) ,12) ) ,-7) ,7) ) ,7) ) ,-7) ,12) ,-7) ,7) ) +transpose((((transpose(X,4) |((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(X,7) ) |echo(arpeggio(X) ,4,6) ) ) +transpose((transpose(transpose(shuffle(X) ,-7) ,-7) +shuffle(arpeggio(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ) ) ) ,4) ) +transpose(step((transpose(transpose(arpeggio(X) ,4) ,-5) |((X+transpose(X,12) ) +transpose(transpose(X,-5) ,7) ) ) ,12) ,7) ) ,7) ) ,4,6) +transpose(transpose(transpose(transpose(echo(transpose(((transpose(X,-7) +transpose(transpose(X,-7) ,12) ) +transpose(transpose((X+transpose(X,12) ) ,-5) ,7) ) ,-7) ,4,6) ,-7) ,4) ,4) ,12) ) ) ,4,6) ,-7) +transpose(transpose(((shuffle(step(((echo(transpose(((transpose((X+transpose(X,12) ) ,-5) +transpose(((transpose(X,-5) +transpose(shuffle(X) ,4) ) +transpose(X,7) ) ,4) ) +transpose(step(X,12) ,7) ) ,-5) ,4,6) +transpose(transpose(arpeggio(transpose(X,-7) ) ,-5) ,12) ) +transpose(step(transpose(echo(transpose(((shuffle(transpose(X,-7) ) +transpose(X,4) ) +transpose(X,7) ) ,-7) ,4,6) ,-7) ,12) ,12) ) ,12) ) +transpose(transpose((echo(shuffle((arpeggio(echo((transpose(echo((X+X) ,4,6) ,-7) |(arpeggio(((X+transpose(X,7) ) +X) ) +transpose(echo(arpeggio(X) ,4,6) ,7) ) ) ,4,6) ) +transpose(step(arpeggio(shuffle(step((X+transpose(echo((X+transpose(X,12) ) ,4,6) ,12) ) ,12) ) ) ,12) ,12) ) ) ,4,6) |transpose(transpose((step(((echo(echo(arpeggio(transpose(arpeggio(echo(X,4,6) ) ,-7) ) ,4,6) ,4,6) +transpose(shuffle((transpose(transpose(X,-7) ,-7) +transpose(transpose(X,-5) ,12) ) ) ,4) ) +transpose(((transpose(X,-5) +transpose(X,12) ) +transpose(transpose(X,-5) ,7) ) ,7) ) ,12) |(((transpose(shuffle(X) ,-7) +transpose(step(((((X+transpose((X+transpose(X,12) ) ,4) ) +transpose(X,7) ) +transpose((transpose((X+X) ,4) +transpose(X,12) ) ,4) ) +transpose(transpose((X+transpose(X,12) ) ,-7) ,7) ) ,12) ,12) ) +transpose((((transpose(X,4) +transpose(arpeggio(X) ,4) ) +transpose(step(((X+transpose(transpose(X,-5) ,4) ) +transpose(X,7) ) ,12) ,7) ) +((transpose(transpose(X,-5) ,-7) +transpose(step(X,12) ,12) ) +((X+transpose((X+X) ,12) ) |transpose(transpose(transpose(X,4) ,-7) ,-7) ) ) ) ,4) ) +transpose((((step(transpose(X,-7) ,12) +transpose((step(X,12) +transpose(arpeggio(X) ,12) ) ,7) ) |transpose(shuffle(X) ,-7) ) +transpose(((step(echo(transpose(X,-5) ,4,6) ,12) +transpose(((X|X) +transpose(arpeggio(X) ,7) ) ,4) ) +transpose(((step(X,12) +transpose(X,12) ) +transpose(X,12) ) ,7) ) ,7) ) ,7) ) ) ,4) ,-7) ) ,-7) ,12) ) +shuffle(step(step(step(transpose(step(step(transpose(transpose((X|X) ,4) ,-7) ,12) ,12) ,4) ,12) ,12) ,12) ) ) ,-7) ,12) )
random seed used was 267982056

NOTE: Generated phrase was too large ( 28437 ) , it has been truncated at 5000 notes. EXPR = (((arpeggio((step(transpose(echo(((((shuffle((((step(shuffle((X|echo(X,4,6) ) ) ,12) +transpose(step(((arpeggio((X+transpose(X,7) ) ) +transpose(arpeggio(X) ,4) ) +transpose(transpose((X+X) ,-7) ,7) ) ,12) ,4) ) +transpose((X|echo(echo(transpose(X,4) ,4,6) ,4,6) ) ,7) ) +((transpose(X,-7) +transpose(transpose(transpose(X,-7) ,-5) ,12) ) |(X+transpose(X,7) ) ) ) ) +transpose(transpose((((X+transpose((X+transpose(X,7) ) ,4) ) +transpose(transpose(X,4) ,7) ) +transpose(echo(((X+X) +transpose(X,12) ) ,4,6) ,12) ) ,-7) ,4) ) +transpose(arpeggio((transpose((((((step(X,12) +transpose(transpose(X,-7) ,12) ) +step(X,12) ) +X) +transpose((((X+transpose(X,7) ) +transpose(((((X+transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ) +transpose(transpose(X,4) ,7) ) +transpose(step(X,12) ,4) ) +transpose((arpeggio(X) +transpose(transpose(X,-7) ,7) ) ,7) ) ,4) ) +transpose(transpose((step(X,12) +transpose(X,7) ) ,-7) ,7) ) ,4) ) +transpose(transpose(transpose(X,-5) ,-7) ,7) ) ,4) |shuffle((X+transpose(transpose(X,-7) ,7) ) ) ) ) ,7) ) +transpose(transpose(transpose((step((echo(arpeggio(step(X,12) ) ,4,6) +transpose((transpose(X,-7) +((X+transpose(X,12) ) +transpose(step(X,12) ,7) ) ) ,12) ) ,12) +transpose(arpeggio(((step(X,12) |((echo(X,4,6) +transpose((X+transpose(X,7) ) ,4) ) +transpose((X|X) ,7) ) ) +transpose((echo(X,4,6) +transpose((X+transpose(X,12) ) ,7) ) ,-7) ) ) ,12) ) ,-5) ,4) ,4) ) +transpose(echo(((((transpose((shuffle(echo((X+transpose(X,12) ) ,4,6) ) +(transpose(transpose(X,-7) ,-7) +((((X+transpose(X,7) ) +(X+transpose(X,7) ) ) +transpose(X,4) ) +transpose(transpose(X,-7) ,7) ) ) ) ,-5) +transpose(((X+transpose(X,12) ) |(X+transpose(X,7) ) ) ,4) ) +transpose(step((transpose((X+(X+transpose(X,12) ) ) ,-7) +transpose(step(transpose(echo(X,4,6) ,-7) ,12) ,7) ) ,12) ,7) ) +transpose(transpose((arpeggio(step(((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(X,4) ) |X) ,12) ) +transpose(shuffle(step(shuffle((X|X) ) ,12) ) ,12) ) ,-7) ,4) ) +transpose(shuffle(transpose(transpose(((transpose(X,-7) +transpose(X,7) ) +transpose(echo((X|X) ,4,6) ,12) ) ,-5) ,-7) ) ,7) ) ,4,6) ,7) ) ,4,6) ,-7) ,12) +transpose(step(echo((((transpose(shuffle((echo(arpeggio(((X+transpose((X+transpose(X,7) ) ,4) ) +transpose(X,7) ) ) ,4,6) +transpose(transpose(echo(X,4,6) ,4) ,7) ) ) ,-7) +((arpeggio((arpeggio((X+transpose(X,7) ) ) +step(X,12) ) ) +transpose(((transpose(((X+transpose(X,12) ) +transpose(echo(X,4,6) ,12) ) ,-7) +transpose((X+transpose(shuffle(X) ,7) ) ,7) ) |transpose(X,-7) ) ,4) ) +transpose(transpose(step(transpose(X,-7) ,12) ,-5) ,7) ) ) |transpose(((shuffle(shuffle(X) ) +transpose(shuffle(shuffle(((X+transpose(X,4) ) +transpose(X,7) ) ) ) ,4) ) +transpose((transpose((echo(((X+transpose(X,4) ) +transpose(X,7) ) ,4,6) +transpose(X,7) ) ,-5) +transpose(step(arpeggio(X) ,12) ,7) ) ,7) ) ,-7) ) +transpose(transpose(arpeggio((shuffle(transpose(X,4) ) +transpose((echo((X+X) ,4,6) +transpose(X,7) ) ,7) ) ) ,-7) ,-7) ) ,4,6) ,12) ,12) ) ) |(arpeggio(step(step(transpose(transpose(transpose(step((echo(transpose((X+transpose(transpose(X,-7) ,7) ) ,-7) ,4,6) +transpose(step(transpose(arpeggio((X+X) ) ,-5) ,12) ,7) ) ,12) ,-7) ,-7) ,-5) ,12) ,12) ) +transpose((arpeggio(step(arpeggio(transpose((step(((((((X+transpose((X|X) ,4) ) +transpose(X,7) ) +transpose(step((X|X) ,12) ,4) ) +transpose(echo(transpose((X+transpose(X,7) ) ,-7) ,4,6) ,7) ) +(shuffle((X+transpose((X+X) ,12) ) ) +transpose((echo(X,4,6) |X) ,12) ) ) +arpeggio((shuffle(transpose(X,-7) ) +transpose((X+transpose(X,12) ) ,12) ) ) ) ,12) +transpose(step((((shuffle(X) +transpose(echo((X+transpose(X,7) ) ,4,6) ,12) ) +transpose(((step((transpose((X|X) ,-7) +transpose(echo(transpose(X,-5) ,4,6) ,7) ) ,12) +transpose(echo(step(X,12) ,4,6) ,4) ) +transpose(transpose(transpose(X,-5) ,-5) ,7) ) ,12) ) +transpose(((transpose((X+X) ,-7) +transpose((X+transpose(X,12) ) ,7) ) |transpose((X+X) ,-7) ) ,7) ) ,12) ,12) ) ,-7) ) ,12) ) +transpose(arpeggio(((step(((shuffle(shuffle(shuffle(shuffle(shuffle(X) ) ) ) ) +transpose(((((X+transpose(X,7) ) +transpose(echo(X,4,6) ,12) ) +((((X+transpose(X,7) ) +transpose(echo(X,4,6) ,4) ) +transpose(X,7) ) +transpose((X+X) ,12) ) ) +transpose((step(X,12) +transpose(X,-7) ) ,12) ) ,12) ) +transpose(((transpose((((X+transpose((X+transpose(X,12) ) ,4) ) +transpose(arpeggio(X) ,7) ) +transpose(shuffle(transpose(X,-7) ) ,12) ) ,4) +transpose(echo(transpose(arpeggio((transpose(X,4) +transpose(X,7) ) ) ,-7) ,4,6) ,4) ) +transpose(transpose(echo((X+X) ,4,6) ,4) ,7) ) ,12) ) ,12) +transpose((((echo(transpose(step(X,12) ,-5) ,4,6) +transpose(((X+transpose(X,12) ) |transpose(step(X,12) ,-5) ) ,7) ) +transpose((((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(step(step(X,12) ,12) ,7) ) +shuffle(echo(transpose(X,-7) ,4,6) ) ) +echo((X+transpose((transpose(X,-5) +transpose(X,12) ) ,12) ) ,4,6) ) ,4) ) +transpose(arpeggio((transpose(shuffle((X+transpose(X,12) ) ) ,-7) |shuffle(X) ) ) ,7) ) ,12) ) +transpose(transpose(echo(transpose(transpose(((arpeggio(echo(echo(X,4,6) ,4,6) ) +transpose(arpeggio(((((X+transpose(X,4) ) +transpose(X,7) ) +transpose((X+transpose(X,12) ) ,12) ) +arpeggio(X) ) ) ,12) ) +transpose(arpeggio(shuffle(X) ) ,7) ) ,-5) ,-7) ,4,6) ,4) ,12) ) ) ,12) ) ,12) ) ) +echo(shuffle(((arpeggio(((transpose(transpose(((X+transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ) +transpose(X,7) ) ,-7) ,-7) +(X|X) ) +(transpose((X|transpose(step(X,12) ,-7) ) ,-7) +transpose(arpeggio(((X+transpose(X,12) ) +transpose(X,12) ) ) ,7) ) ) ) +transpose(((step(transpose(echo(X,4,6) ,4) ,12) +transpose(transpose((echo((((echo(X,4,6) +transpose((X+transpose(X,7) ) ,4) ) +transpose(X,7) ) +transpose(((X+transpose(X,7) ) +transpose(echo(X,4,6) ,7) ) ,7) ) ,4,6) +transpose((X+X) ,12) ) ,4) ,7) ) |(transpose(((X|(X+transpose((X+transpose(X,12) ) ,7) ) ) +(((X+transpose(X,7) ) +transpose(((X+transpose(X,12) ) +transpose((X+X) ,12) ) ,4) ) +transpose(((X+transpose(X,7) ) +transpose(arpeggio(X) ,7) ) ,7) ) ) ,-7) +transpose((((transpose(echo(X,4,6) ,-7) |echo(X,4,6) ) +transpose(transpose(step(echo(((X+transpose(X,4) ) +transpose(X,7) ) ,4,6) ,12) ,-5) ,4) ) +transpose(X,7) ) ,7) ) ) ,4) ) +transpose(transpose(step((transpose(echo(transpose(echo(transpose((X|X) ,4) ,4,6) ,-7) ,4,6) ,-7) +transpose(transpose((((((X+transpose(transpose(X,-5) ,4) ) +transpose(X,7) ) |arpeggio(X) ) +transpose((shuffle(transpose(X,4) ) |echo(X,4,6) ) ,12) ) +transpose((transpose(transpose((X+transpose(X,12) ) ,-7) ,-7) +(transpose((X+transpose(X,12) ) ,-7) +transpose(echo((X+transpose(X,12) ) ,4,6) ,12) ) ) ,12) ) ,-7) ,7) ) ,12) ,-5) ,7) ) ) ,4,6) ) +transpose(echo(((transpose((((transpose((arpeggio(((transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-5) +transpose(transpose(step((X|((X+transpose(X,4) ) +transpose(X,7) ) ) ,12) ,-5) ,4) ) +transpose((shuffle(X) +transpose(X,12) ) ,7) ) ) +transpose(((echo(((X+X) |(X+transpose(X,7) ) ) ,4,6) +transpose(shuffle((X+(X+transpose(X,7) ) ) ) ,4) ) +transpose(step(arpeggio(X) ,12) ,7) ) ,12) ) ,-5) +transpose(step((transpose((echo(shuffle(transpose(echo(X,4,6) ,-7) ) ,4,6) +transpose(((shuffle(X) +transpose(step(echo(X,4,6) ,12) ,4) ) +transpose(transpose(X,-7) ,7) ) ,12) ) ,4) |((echo(X,4,6) +transpose(((transpose(X,-7) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ) +transpose(X,7) ) ,7) ) +transpose(transpose(X,-7) ,7) ) ) ,12) ,4) ) +transpose((((((X+transpose(transpose(X,-7) ,12) ) +transpose(step(shuffle(X) ,12) ,12) ) +transpose(arpeggio(step(transpose(arpeggio(X) ,-7) ,12) ) ,-5) ) +transpose(((echo((transpose((X+transpose(step(X,12) ,7) ) ,4) |(arpeggio(X) +transpose(transpose(X,-7) ,12) ) ) ,4,6) +((shuffle((shuffle(X) |((X+transpose(X,4) ) +transpose(X,7) ) ) ) +transpose(((X+transpose(X,7) ) +transpose(transpose(X,-7) ,7) ) ,4) ) +transpose(((arpeggio(transpose(X,4) ) +transpose(arpeggio(step(X,12) ) ,7) ) +(((X+transpose(X,4) ) +transpose(X,7) ) |(X+transpose(X,12) ) ) ) ,7) ) ) +transpose(transpose(transpose(transpose(echo((((X+transpose(X,12) ) +transpose(echo(X,4,6) ,4) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) ,4,6) ,-7) ,4) ,-7) ,12) ) ,4) ) +transpose(transpose((((transpose(shuffle(X) ,4) |echo(X,4,6) ) +transpose(echo((shuffle(X) +transpose(step(echo(X,4,6) ,12) ,7) ) ,4,6) ,4) ) +transpose(arpeggio((transpose((X+transpose(X,12) ) ,-7) +transpose((X+transpose(X,12) ) ,7) ) ) ,7) ) ,-7) ,7) ) ,7) ) +transpose(arpeggio((transpose(transpose(transpose(X,-7) ,-7) ,-7) +transpose((((arpeggio(((arpeggio(X) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ) +transpose(X,7) ) ) +transpose(((transpose(X,-7) +transpose(X,7) ) |(transpose((X|X) ,-5) |(transpose(X,4) +transpose(X,12) ) ) ) ,7) ) +transpose((arpeggio(step(X,12) ) +transpose((X+transpose(X,12) ) ,12) ) ,12) ) +transpose((((((X|X) +transpose((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(X,-5) ) ,7) ) +transpose((((transpose(X,4) +transpose(((X+transpose(X,7) ) +transpose(step(X,12) ,7) ) ,4) ) +transpose(transpose(X,-5) ,7) ) +transpose(arpeggio(X) ,7) ) ,4) ) +transpose(transpose(transpose((X|X) ,4) ,-5) ,7) ) +transpose(transpose(echo(X,4,6) ,-7) ,12) ) ,12) ) ,7) ) ) ,7) ) ,-7) +transpose((((((((transpose(X,-5) +transpose(shuffle(X) ,7) ) +transpose(((X+transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ) +transpose(transpose(X,-5) ,7) ) ,7) ) |transpose((X|X) ,-5) ) +transpose(((shuffle(arpeggio(X) ) +transpose(shuffle(((X+transpose((X+transpose(X,12) ) ,12) ) +transpose((X+transpose(X,7) ) ,12) ) ) ,4) ) +transpose(transpose(step(X,12) ,-5) ,7) ) ,4) ) +transpose(transpose(echo(transpose((X+transpose(X,7) ) ,-7) ,4,6) ,-7) ,7) ) |(echo(transpose((((X|X) +transpose((X+X) ,12) ) |shuffle(X) ) ,-7) ,4,6) +(shuffle(transpose(X,4) ) +transpose(transpose(transpose(shuffle(transpose(step((X+X) ,12) ,-7) ) ,-7) ,4) ,7) ) ) ) +(transpose(((step(X,12) +transpose(arpeggio(X) ,12) ) +transpose(shuffle(transpose(transpose(shuffle(X) ,-7) ,-7) ) ,12) ) ,-7) +transpose(((transpose(transpose(((echo(X,4,6) +transpose((X+transpose(X,7) ) ,4) ) +transpose((transpose(X,-7) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) ,7) ) ,-7) ,-7) |(((X+transpose(X,4) ) +transpose(X,7) ) +transpose(X,12) ) ) +transpose(arpeggio(((shuffle(X) +transpose(transpose(shuffle((X|X) ) ,-7) ,4) ) +transpose((arpeggio((X+transpose(X,12) ) ) +transpose((X+transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ) ,12) ) ,7) ) ) ,12) ) ,12) ) ) ,-7) ) +transpose(shuffle(step(transpose(echo(((((((transpose(arpeggio(X) ,-7) +transpose(transpose(X,-5) ,4) ) +transpose((((step(X,12) +transpose(X,4) ) +transpose(transpose(X,-7) ,7) ) +transpose(X,4) ) ,7) ) +transpose(((transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-5) +transpose(arpeggio((X|X) ) ,4) ) +transpose(((X|X) +transpose((X+transpose(X,7) ) ,12) ) ,7) ) ,4) ) +transpose(((transpose(transpose(X,-5) ,-5) +transpose((arpeggio((X+transpose(X,12) ) ) +transpose(X,7) ) ,4) ) +transpose(transpose(X,-7) ,7) ) ,7) ) +transpose((arpeggio(step(X,12) ) +transpose(echo(((transpose(X,-5) +transpose(X,4) ) +transpose(X,7) ) ,4,6) ,12) ) ,7) ) +(echo((((X+transpose(X,12) ) +transpose(step(X,12) ,4) ) +transpose(transpose(X,4) ,7) ) ,4,6) +transpose(transpose(echo(transpose(echo(transpose(X,-7) ,4,6) ,4) ,4,6) ,-7) ,12) ) ) ,4,6) ,-7) ,12) ) ,7) ) ,4,6) ,12) )
random seed used was 0

NOTE: Generated phrase was too large ( 21150 ) , it has been truncated at 5000 notes.


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