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(transpose((shuffle(transpose(transpose(arpeggio((arpeggio((step(X,12) +transpose(shuffle(X) ,12) ) ) +transpose((transpose(echo(transpose((X+transpose(X,-5) ) ,-7) ,4,6) ,-7) +transpose(transpose(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ,-5) ,12) ) ,12) ) ) ,-5) ,-5) ) +(step(transpose(transpose((((step(((X+transpose((X+transpose(X,12) ) ,12) ) +transpose((((X+transpose(X,7) ) +transpose(transpose((X+X) ,-5) ,4) ) +transpose(X,7) ) ,12) ) ,12) +transpose(transpose(echo(transpose(transpose((((X|X) +transpose(X,4) ) +transpose(transpose(X,-5) ,7) ) ,-5) ,-5) ,4,6) ,-7) ,12) ) +transpose((echo(step(shuffle(X) ,12) ,4,6) +transpose(echo(transpose(step(X,12) ,-7) ,4,6) ,12) ) ,4) ) +transpose(transpose(step((echo((X|X) ,4,6) |echo(transpose(X,4) ,4,6) ) ,12) ,-7) ,7) ) ,-7) ,-7) ,12) |transpose(transpose(shuffle(arpeggio((((shuffle(X) +transpose(arpeggio(X) ,12) ) +transpose(((((shuffle(X) +transpose(X,4) ) +transpose((step(echo(X,4,6) ,12) +transpose(transpose(step(X,12) ,-7) ,7) ) ,7) ) +transpose((transpose(step(shuffle(transpose(X,4) ) ,12) ,-5) +transpose(((transpose(X,-5) +transpose(transpose((((X+transpose(X,4) ) +transpose(X,7) ) |transpose(X,-5) ) ,-5) ,4) ) +transpose(arpeggio(X) ,7) ) ,12) ) ,4) ) +transpose(shuffle((((X|((X+transpose(X,4) ) +transpose(X,7) ) ) +shuffle(transpose(X,-7) ) ) +transpose((transpose(shuffle(X) ,4) +transpose((transpose(X,-5) |transpose(X,-5) ) ,7) ) ,7) ) ) ,7) ) ,4) ) +transpose(transpose(transpose(transpose(transpose(X,-7) ,-5) ,-7) ,4) ,7) ) ) ) ,-5) ,-7) ) ) ,-5) ,4,6) ,-7) +transpose(transpose(transpose((((arpeggio(((((((transpose(transpose(transpose((X+transpose(X,7) ) ,4) ,4) ,4) +transpose(transpose((X|(X+transpose(X,7) ) ) ,-5) ,12) ) +transpose((echo(transpose(X,-7) ,4,6) +transpose((X+transpose(transpose(transpose(X,-5) ,-7) ,12) ) ,12) ) ,4) ) +transpose(step(transpose(X,-5) ,12) ,7) ) |arpeggio(transpose((X|X) ,4) ) ) +transpose(((arpeggio(transpose(X,-5) ) |step(transpose(transpose(X,-7) ,-5) ,12) ) +transpose(arpeggio(transpose((transpose(X,-5) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ) ,4) ) ,7) ) ,4) ) +transpose(((shuffle(transpose(transpose(X,-7) ,-5) ) +transpose(arpeggio(echo(X,4,6) ) ,12) ) +transpose(echo((arpeggio(((X+transpose(X,4) ) +transpose(X,7) ) ) +transpose(transpose(X,4) ,12) ) ,4,6) ,7) ) ,7) ) ) +transpose(transpose(transpose(transpose((transpose(transpose(transpose(X,4) ,4) ,-5) +transpose(transpose((echo(X,4,6) +transpose(shuffle((X+transpose(X,7) ) ) ,12) ) ,-7) ,-5) ) ,-5) ,-7) ,4) ,12) ) +shuffle(((transpose(transpose(((step(X,12) +transpose(X,4) ) |transpose(((X+X) +transpose(transpose(X,-5) ,7) ) ,-5) ) ,-7) ,-7) +transpose(transpose(echo(shuffle((shuffle(transpose(X,4) ) +transpose(((((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(X,4) ) +transpose(X,7) ) +transpose(transpose(X,4) ,4) ) +transpose(arpeggio(((echo(X,4,6) +transpose(X,4) ) +transpose(X,7) ) ) ,7) ) ,12) ) ) ,4,6) ,4) ,4) ) +transpose(arpeggio(transpose(echo((X+X) ,4,6) ,-5) ) ,7) ) ) ) +transpose(echo(transpose((step(((step(((X+transpose(X,4) ) +transpose(X,7) ) ,12) |(X+transpose((X+(X+transpose(X,7) ) ) ,7) ) ) +transpose(transpose(arpeggio(arpeggio(X) ) ,-5) ,7) ) ,12) +transpose(transpose(((((arpeggio(X) +transpose((X+X) ,4) ) +transpose(transpose(X,4) ,7) ) +transpose((transpose(X,-5) +X) ,7) ) |arpeggio(X) ) ,-5) ,12) ) ,-5) ,4,6) ,12) ) ,4) ,-5) ,4) ) +transpose(transpose(((((transpose(transpose((step(arpeggio(step(shuffle(arpeggio(transpose(X,-7) ) ) ,12) ) ,12) +transpose(transpose(transpose(((step(step((X+transpose(transpose(X,-5) ,7) ) ,12) ,12) +transpose(arpeggio(transpose(transpose(echo(transpose(X,-5) ,4,6) ,-5) ,-7) ) ,4) ) +transpose(((arpeggio(arpeggio(((X+transpose(X,4) ) +transpose(X,7) ) ) ) +transpose(echo(((transpose(transpose(X,4) ,4) +transpose(arpeggio(((X+transpose(X,4) ) +transpose(X,7) ) ) ,4) ) +transpose(echo(shuffle(X) ,4,6) ,7) ) ,4,6) ,4) ) +transpose((transpose(X,-7) +transpose(X,7) ) ,7) ) ,7) ) ,4) ,-7) ,7) ) ,-7) ,-7) +transpose(transpose((transpose(((echo(arpeggio(((transpose(echo(X,4,6) ,-7) +transpose(shuffle((X+transpose(X,7) ) ) ,4) ) +transpose(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-7) ,7) ) ) ,4,6) +transpose(transpose(arpeggio(X) ,-5) ,4) ) +transpose((transpose(transpose((X+transpose(X,12) ) ,-5) ,-5) +transpose((arpeggio(X) +transpose((transpose((transpose(X,4) +transpose((X+transpose(X,7) ) ,12) ) ,4) +transpose((X+transpose(step(X,12) ,7) ) ,4) ) ,12) ) ,7) ) ,7) ) ,-7) +transpose(transpose(((step((transpose((X+transpose(X,12) ) ,-7) +transpose(transpose(X,-7) ,7) ) ,12) +transpose(((transpose(X,-5) +transpose(step(transpose((X+transpose(X,7) ) ,4) ,12) ,7) ) |transpose(arpeggio(transpose(X,4) ) ,-5) ) ,4) ) +transpose(echo(transpose(transpose(X,4) ,4) ,4,6) ,7) ) ,4) ,4) ) ,4) ,7) ) +transpose(transpose(step(transpose(echo((transpose(transpose(shuffle(transpose(X,-5) ) ,4) ,4) +transpose(echo(transpose((echo(X,4,6) |X) ,-7) ,4,6) ,12) ) ,4,6) ,4) ,12) ,-5) ,12) ) +transpose((((transpose(transpose(echo(transpose(transpose(transpose(transpose(X,4) ,-5) ,4) ,-5) ,4,6) ,-7) ,-5) +transpose(transpose(arpeggio(transpose((shuffle((X|echo(X,4,6) ) ) +transpose((X+transpose(X,7) ) ,-5) ) ,-5) ) ,4) ,4) ) +transpose(transpose(step(transpose(echo(arpeggio(shuffle(arpeggio((step(X,12) +transpose(transpose(X,-7) ,7) ) ) ) ) ,4,6) ,-5) ,12) ,-7) ,7) ) +transpose(shuffle((((((((transpose(X,4) +transpose(step(X,12) ,7) ) +transpose(arpeggio(arpeggio(X) ) ,7) ) +transpose(echo((echo((X+transpose(X,12) ) ,4,6) +transpose(((arpeggio(X) +transpose(transpose(X,-7) ,12) ) |(X|transpose(X,-5) ) ) ,12) ) ,4,6) ,4) ) +transpose(transpose(transpose(X,-7) ,-5) ,7) ) +transpose(((transpose(X,4) +transpose(transpose((X|X) ,-5) ,12) ) +transpose(shuffle((transpose(shuffle((X+transpose(X,12) ) ) ,-5) +transpose(arpeggio(X) ,7) ) ) ,7) ) ,4) ) +transpose(transpose(arpeggio(transpose(transpose(X,4) ,4) ) ,4) ,7) ) +transpose(echo(step((((echo(transpose(X,-5) ,4,6) +transpose(transpose((X|X) ,4) ,12) ) |transpose(echo(X,4,6) ,4) ) +transpose(arpeggio(transpose(transpose(X,4) ,-5) ) ,7) ) ,12) ,4,6) ,12) ) ) ,-5) ) ,12) ) |((transpose((transpose((echo(transpose(step(transpose(shuffle(X) ,4) ,12) ,-5) ,4,6) +transpose(echo(transpose(X,-5) ,4,6) ,-5) ) ,-7) +((shuffle(transpose(arpeggio(X) ,-7) ) +transpose(((shuffle(transpose(X,4) ) +transpose(X,4) ) +transpose((X+transpose(X,12) ) ,12) ) ,12) ) +echo(((((echo(transpose(X,-5) ,4,6) +transpose(transpose(X,-5) ,4) ) +transpose(arpeggio(X) ,7) ) +transpose((((X+transpose(X,12) ) +transpose(X,4) ) +transpose((X+transpose(X,12) ) ,7) ) ,4) ) +transpose(step(transpose(X,-7) ,12) ,7) ) ,4,6) ) ) ,-5) +transpose(echo(shuffle(echo(transpose(transpose(X,-7) ,4) ,4,6) ) ,4,6) ,7) ) +((transpose((arpeggio(transpose(transpose(shuffle(echo(((X|X) +transpose(X,-7) ) ,4,6) ) ,4) ,4) ) +transpose(arpeggio(((transpose(X,-7) +transpose((X+X) ,12) ) +(((((X+transpose((X|X) ,12) ) +transpose(echo((X+X) ,4,6) ,4) ) +transpose(echo(transpose(X,-7) ,4,6) ,7) ) +transpose(transpose(shuffle(arpeggio(X) ) ,-5) ,4) ) +transpose(transpose(step(X,12) ,4) ,7) ) ) ) ,12) ) ,-7) +transpose(((transpose((shuffle(X) |(transpose(X,-7) +transpose(transpose(X,-7) ,7) ) ) ,-5) |(transpose((shuffle(transpose(X,4) ) |(transpose(X,-7) +transpose(transpose(X,-5) ,12) ) ) ,4) +transpose(transpose((transpose(shuffle(X) ,4) +shuffle(X) ) ,4) ,7) ) ) +transpose(transpose(step((transpose((transpose(X,-7) +transpose(transpose(X,-7) ,12) ) ,-5) +shuffle(((X+transpose(X,4) ) +transpose(transpose(X,-7) ,7) ) ) ) ,12) ,-5) ,12) ) ,4) ) +transpose(transpose(transpose(transpose((((echo(transpose((X|X) ,-5) ,4,6) +transpose(echo(transpose(transpose(X,-7) ,-5) ,4,6) ,7) ) +transpose((transpose((X|X) ,-7) +(X+transpose(X,7) ) ) ,4) ) +transpose(((arpeggio(shuffle(shuffle(shuffle(transpose(X,-5) ) ) ) ) +transpose(((echo(transpose((X+transpose(X,12) ) ,4) ,4,6) +transpose((arpeggio((X+transpose(X,7) ) ) +transpose(arpeggio(((echo(X,4,6) +transpose(X,4) ) +transpose(X,7) ) ) ,7) ) ,4) ) +transpose(((shuffle(echo(X,4,6) ) +transpose(transpose(X,4) ,4) ) +transpose(X,7) ) ,7) ) ,4) ) +transpose((transpose(X,-5) |transpose(X,4) ) ,7) ) ,7) ) ,-5) ,-5) ,-7) ,-5) ) ) ) ,-7) ,7) )
random seed used was 177436589

NOTE: Generated phrase was too large ( 5368 ) , it has been truncated at 5000 notes. EXPR = transpose(shuffle((transpose(transpose((transpose(transpose(shuffle(step(transpose(transpose((X+transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) ,-5) ,4) ,12) ) ,4) ,-5) |echo(shuffle((shuffle(transpose(shuffle(transpose(X,-5) ) ,-7) ) |transpose((((transpose(echo(X,4,6) ,-5) +(transpose(X,-7) +transpose(transpose(transpose(X,4) ,-5) ,7) ) ) +transpose(transpose((X+transpose(transpose(X,4) ,7) ) ,4) ,7) ) +transpose(transpose((X+X) ,-5) ,7) ) ,-5) ) ) ,4,6) ) ,4) ,-5) |(transpose(transpose(transpose((step(arpeggio(shuffle(transpose((arpeggio(transpose(X,4) ) +transpose(shuffle(transpose(X,-7) ) ,7) ) ,4) ) ) ,12) +transpose(transpose(((transpose(transpose(((X|X) +transpose(X,-7) ) ,4) ,-5) +transpose(transpose(((X+transpose(step(X,12) ,12) ) +(X+transpose(X,12) ) ) ,-5) ,-5) ) |step(((transpose((transpose(X,-5) +transpose((transpose(X,4) +transpose((X+X) ,7) ) ,7) ) ,-5) +transpose((((X+transpose(transpose(X,-7) ,4) ) +transpose((X+X) ,7) ) +transpose(X,7) ) ,4) ) +transpose(((((X+transpose(X,7) ) +transpose(transpose(X,4) ,7) ) +transpose(transpose(echo(X,4,6) ,-5) ,4) ) +transpose((X|X) ,7) ) ,7) ) ,12) ) ,4) ,7) ) ,4) ,4) ,-5) +transpose(transpose(transpose((shuffle(transpose(shuffle(echo(transpose(shuffle((X+transpose(X,12) ) ) ,4) ,4,6) ) ,-7) ) +transpose(transpose(transpose((transpose(echo(echo((transpose(X,4) +transpose((X|X) ,7) ) ,4,6) ,4,6) ,-7) +((transpose((X+transpose(X,12) ) ,4) +transpose(shuffle((X+transpose(X,12) ) ) ,12) ) |transpose(echo(X,4,6) ,-7) ) ) ,-5) ,-5) ,12) ) ,4) ,4) ,7) ) ) ) ,4)
random seed used was 0 EXPR = (shuffle(transpose(step(transpose((step(step(transpose(X,4) ,12) ,12) |transpose(((echo(((X+transpose(X,4) ) +transpose((X+transpose(X,7) ) ,7) ) ,4,6) +transpose(((transpose(step(X,12) ,4) +transpose(((X+transpose(((arpeggio(X) +transpose(X,4) ) +transpose(echo(X,4,6) ,7) ) ,4) ) +transpose(shuffle(shuffle(X) ) ,7) ) ,4) ) +transpose((((X+transpose(X,12) ) +transpose(transpose(X,-7) ,4) ) +transpose(((X|X) |echo(X,4,6) ) ,7) ) ,7) ) ,12) ) +transpose(((arpeggio(X) +transpose(X,4) ) +transpose(arpeggio(X) ,7) ) ,7) ) ,-7) ) ,-7) ,12) ,4) ) +step(transpose((echo(step((step((((transpose(transpose(transpose(X,-5) ,-7) ,-5) +transpose(shuffle(transpose(arpeggio(X) ,4) ) ,7) ) +(((shuffle(X) +transpose(((X+X) +transpose((X+transpose(X,12) ) ,7) ) ,4) ) +transpose(arpeggio(echo(X,4,6) ) ,7) ) |transpose(transpose(transpose((X+transpose(X,7) ) ,4) ,4) ,4) ) ) +transpose((((((transpose(((X+transpose(X,12) ) +transpose(X,4) ) ,4) +transpose(((echo((transpose(X,4) +transpose(transpose(X,4) ,7) ) ,4,6) +transpose(((((transpose(X,4) +transpose(X,4) ) +transpose((X+X) ,7) ) +step(transpose(X,-7) ,12) ) |transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-7) ) ,4) ) +transpose(((X+transpose(transpose(X,-5) ,7) ) +transpose(transpose(X,4) ,12) ) ,7) ) ,4) ) +transpose(((echo(step(X,12) ,4,6) +transpose(echo(transpose(X,-7) ,4,6) ,4) ) +transpose(echo((X+X) ,4,6) ,7) ) ,7) ) +transpose(shuffle((transpose(X,-7) +transpose(step(transpose(X,-5) ,12) ,12) ) ) ,7) ) +step(((X+transpose(arpeggio((X+X) ) ,4) ) +transpose((X+transpose(X,12) ) ,7) ) ,12) ) |((transpose(transpose((X+transpose(X,7) ) ,-5) ,4) +transpose((echo(((X+transpose(X,7) ) +transpose((X|X) ,12) ) ,4,6) +(((X+transpose(X,12) ) |(transpose(X,-5) +transpose(transpose(X,-5) ,12) ) ) +transpose(((transpose(transpose(X,-7) ,-7) +transpose(transpose((X|X) ,4) ,4) ) +transpose((X|X) ,7) ) ,12) ) ) ,7) ) +transpose(echo(shuffle(((shuffle(X) +transpose((X+X) ,7) ) +(X+transpose(X,12) ) ) ) ,4,6) ,12) ) ) ,12) ) ,12) |transpose(shuffle(((transpose(X,-7) +transpose((step(X,12) +transpose(transpose(X,4) ,7) ) ,7) ) +transpose(((step(transpose(shuffle(X) ,4) ,12) +transpose(((((X+transpose(X,12) ) +transpose(X,7) ) +transpose(((X+transpose(X,7) ) +transpose(transpose(X,-5) ,12) ) ,12) ) +arpeggio(X) ) ,4) ) +transpose(transpose(transpose(step(echo(X,4,6) ,12) ,-7) ,4) ,7) ) ,12) ) ) ,-7) ) ,12) ,4,6) +transpose((transpose(echo(step((echo(transpose(transpose(shuffle(transpose(X,4) ) ,-5) ,4) ,4,6) +transpose(step(transpose(echo(step(X,12) ,4,6) ,-5) ,12) ,12) ) ,12) ,4,6) ,-5) +transpose(((echo((X+transpose(transpose(transpose(((X+transpose(arpeggio((X+transpose(X,12) ) ) ,4) ) +transpose(shuffle(step(X,12) ) ,7) ) ,4) ,-7) ,7) ) ,4,6) +transpose(((arpeggio(transpose(transpose(X,4) ,-7) ) +transpose((((X+transpose((X+transpose(X,7) ) ,12) ) +transpose((X+transpose(X,12) ) ,4) ) +transpose(transpose(X,-7) ,7) ) ,12) ) +transpose(echo(echo(X,4,6) ,4,6) ,12) ) ,7) ) +transpose(echo((transpose(transpose(transpose(step(X,12) ,4) ,-5) ,4) +transpose(transpose(transpose(arpeggio(echo(transpose(X,-7) ,4,6) ) ,4) ,-7) ,7) ) ,4,6) ,7) ) ,7) ) ,12) ) ,4) ,12) )
random seed used was 0 EXPR = (((transpose(transpose(((shuffle(((transpose(shuffle(transpose(transpose(transpose(X,4) ,-5) ,-5) ) ,4) +transpose(transpose(transpose(transpose(transpose((transpose(X,4) +transpose(transpose(X,4) ,12) ) ,4) ,-5) ,4) ,4) ,12) ) +transpose(echo(((transpose(echo(X,4,6) ,-7) +(transpose(echo(X,4,6) ,-7) +step(step(X,12) ,12) ) ) +transpose(transpose((transpose(arpeggio(X) ,-5) +transpose(transpose(X,-5) ,7) ) ,-5) ,7) ) ,4,6) ,12) ) ) |(((((((transpose(X,-7) +transpose((X|X) ,12) ) +transpose(step(X,12) ,7) ) +transpose(echo(X,4,6) ,7) ) +transpose(((X|X) +transpose((X+transpose(X,7) ) ,12) ) ,-7) ) +transpose(shuffle(transpose(transpose(X,4) ,-7) ) ,12) ) +transpose(transpose(arpeggio((((transpose(X,-5) |(X+X) ) +transpose(arpeggio(transpose(X,-7) ) ,4) ) +transpose((X+X) ,7) ) ) ,-7) ,7) ) +transpose((transpose(transpose(arpeggio(shuffle(echo(X,4,6) ) ) ,-5) ,4) +transpose(transpose(arpeggio(echo(echo(echo(X,4,6) ,4,6) ,4,6) ) ,4) ,-5) ) ,7) ) ) +transpose(((transpose((step((step(shuffle(X) ,12) +((transpose(X,-7) +transpose(transpose(echo(transpose(X,-5) ,4,6) ,-5) ,4) ) +transpose(transpose(transpose(X,-7) ,-7) ,7) ) ) ,12) +transpose(transpose(arpeggio(transpose(((transpose(X,4) +transpose(transpose(X,-7) ,4) ) +transpose((X+transpose(X,7) ) ,7) ) ,-5) ) ,-5) ,12) ) ,4) +transpose(arpeggio((transpose((step(X,12) +transpose(X,12) ) ,-5) +arpeggio(transpose((transpose(X,4) +transpose(X,7) ) ,-7) ) ) ) ,7) ) +(transpose((transpose(transpose(((transpose(transpose(X,4) ,-5) +transpose((shuffle(X) +transpose(echo(X,4,6) ,7) ) ,7) ) +transpose(step(((X+transpose(X,7) ) +arpeggio(transpose(X,4) ) ) ,12) ,7) ) ,-7) ,4) +transpose(arpeggio(transpose(step(transpose((shuffle(X) +transpose(transpose((X+transpose(X,12) ) ,-5) ,7) ) ,-7) ,12) ,-5) ) ,12) ) ,4) +(echo(((transpose((transpose(X,-5) +((X+transpose(transpose(X,-5) ,4) ) +transpose(shuffle(X) ,7) ) ) ,-7) +transpose((transpose(transpose((X+transpose(X,12) ) ,-7) ,4) |X) ,7) ) +arpeggio(((step(echo((X+transpose(X,7) ) ,4,6) ,12) +transpose(((arpeggio(X) +transpose(transpose(echo(X,4,6) ,-5) ,4) ) +transpose(((shuffle(X) +transpose((X+X) ,4) ) +transpose(transpose(X,4) ,7) ) ,7) ) ,4) ) +transpose((shuffle(((X+transpose(X,4) ) +transpose(X,7) ) ) +transpose(transpose(X,-5) ,12) ) ,7) ) ) ) ,4,6) |((arpeggio(transpose(transpose(shuffle(transpose((step(echo(X,4,6) ,12) |(X|X) ) ,-7) ) ,-7) ,-5) ) +transpose(((transpose(((transpose(X,-5) +transpose((((X+transpose(X,4) ) +transpose(X,7) ) +X) ,4) ) +transpose(step(X,12) ,7) ) ,-7) +transpose(transpose(((transpose(X,4) +transpose(transpose((X+transpose(X,12) ) ,-7) ,4) ) +transpose(transpose(X,4) ,7) ) ,-5) ,12) ) +transpose(step(((transpose(step(transpose((step(X,12) |X) ,-7) ,12) ,-5) +transpose(arpeggio((transpose(transpose(X,-7) ,-7) +transpose(arpeggio(X) ,12) ) ) ,4) ) +transpose(transpose(transpose(shuffle(X) ,4) ,4) ,7) ) ,12) ,12) ) ,4) ) +transpose(transpose((shuffle((arpeggio(arpeggio(X) ) +transpose(transpose((X+X) ,4) ,7) ) ) +transpose((transpose((step(X,12) |(X+X) ) ,4) |transpose((X+transpose(X,12) ) ,-5) ) ,7) ) ,-7) ,7) ) ) ) ) ,12) ) ,4) ,-5) +transpose(echo(shuffle(shuffle(step((transpose(step((step(X,12) +transpose(echo((X+transpose(X,12) ) ,4,6) ,12) ) ,12) ,4) +transpose(arpeggio(echo((X|X) ,4,6) ) ,12) ) ,12) ) ) ,4,6) ,4) ) +transpose(step(((shuffle(((transpose(((transpose(transpose(shuffle(((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(X,4) ) +transpose(X,7) ) ) ,-7) ,4) +transpose(echo(transpose(step(echo(X,4,6) ,12) ,4) ,4,6) ,12) ) |echo(((shuffle(step(arpeggio(((X+transpose(X,4) ) +transpose(X,7) ) ) ,12) ) +transpose(step(((echo((transpose(X,-5) +transpose(X,12) ) ,4,6) +transpose(arpeggio(((echo(echo(X,4,6) ,4,6) +transpose(shuffle(X) ,4) ) +transpose((transpose(X,-7) |X) ,7) ) ) ,7) ) +transpose(shuffle(X) ,7) ) ,12) ,4) ) +transpose(transpose(transpose((transpose(transpose(X,-5) ,-7) |shuffle(transpose(X,-7) ) ) ,-7) ,4) ,7) ) ,4,6) ) ,4) +transpose(((arpeggio(transpose(transpose(shuffle((step((X+transpose(X,12) ) ,12) +(transpose(step(X,12) ,-5) +transpose(echo(transpose(X,-7) ,4,6) ,12) ) ) ) ,4) ,-7) ) +transpose(transpose(transpose((X+transpose(step(X,12) ,7) ) ,-7) ,-7) ,4) ) +transpose((step((transpose(((echo(X,4,6) +transpose(X,4) ) +transpose(transpose(X,-5) ,7) ) ,-7) +transpose(arpeggio(echo(transpose(X,-5) ,4,6) ) ,7) ) ,12) +transpose((X|(X+transpose(X,12) ) ) ,-5) ) ,7) ) ,4) ) +transpose(transpose(transpose(((X+transpose(shuffle(transpose(X,4) ) ,4) ) +transpose(step((X+transpose(X,12) ) ,12) ,7) ) ,4) ,-5) ,7) ) ) |echo(transpose(shuffle(((echo((transpose(transpose(X,-7) ,4) +transpose(echo(transpose(arpeggio(X) ,-5) ,4,6) ,7) ) ,4,6) +transpose(step(arpeggio(echo((X+transpose(X,7) ) ,4,6) ) ,12) ,7) ) |transpose((transpose(((X+transpose(X,4) ) +transpose((X|X) ,7) ) ,-5) +transpose((((X+transpose(X,7) ) +transpose(transpose((X+transpose(X,7) ) ,-7) ,4) ) +transpose(X,7) ) ,12) ) ,-7) ) ) ,-7) ,4,6) ) +transpose(transpose(transpose(transpose(echo(arpeggio(step((X+transpose(step(X,12) ,12) ) ,12) ) ,4,6) ,-7) ,-5) ,-7) ,12) ) ,12) ,7) ) |transpose(arpeggio((transpose(arpeggio(arpeggio((((arpeggio(((transpose(transpose(transpose(X,-5) ,-7) ,-5) +transpose(transpose(echo(transpose(X,4) ,4,6) ,4) ,12) ) |transpose(shuffle(echo(transpose(transpose(echo(X,4,6) ,-7) ,4) ,4,6) ) ,4) ) ) +transpose(transpose(step(transpose((transpose(X,4) +transpose(transpose((X+transpose(X,12) ) ,4) ,7) ) ,4) ,12) ,4) ,4) ) +transpose(transpose(transpose(step(transpose((transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) +(X+transpose(X,7) ) ) ,4) ,12) ,-7) ,-5) ,7) ) +transpose(((transpose((step(((step(X,12) +step(X,12) ) +transpose(echo(echo(step(X,12) ,4,6) ,4,6) ,7) ) ,12) +transpose(transpose(X,-7) ,12) ) ,4) +transpose(echo(shuffle((transpose(transpose(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ,-5) ,-7) +transpose((step(transpose(transpose(shuffle(X) ,-5) ,-7) ,12) |transpose(echo(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-7) ,4,6) ,-5) ) ,7) ) ) ,4,6) ,4) ) +transpose((echo(transpose((arpeggio(((shuffle(X) +X) +transpose(transpose(transpose(X,4) ,-5) ,12) ) ) +transpose(transpose(step(X,12) ,-7) ,7) ) ,4) ,4,6) +(transpose(transpose(X,-7) ,-7) +transpose(transpose(arpeggio(shuffle(echo(X,4,6) ) ) ,-7) ,7) ) ) ,7) ) ,7) ) ) ) ,-7) +transpose(transpose(transpose(transpose(transpose(echo(transpose(transpose(X,-7) ,4) ,4,6) ,-5) ,4) ,-5) ,-7) ,7) ) ) ,-7) )
random seed used was 0

NOTE: Generated phrase was too large ( 5056 ) , it has been truncated at 5000 notes.


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