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:
Seed:
Randomize seed:
Generations:
Phrase for X:
# of Tracks:
Randomize patches:
 

Results may not appear for a few seconds.
Be patient!
Do you like this result? Do you want to let other people listen to it?

Save this one in the
Tune Trove!

See what's already
in the Tune Trove!

After 18 generations the expression "X" became this:
step((((((((transpose(shuffle(transpose(X,-7) ) ,-7) +transpose(echo(transpose(shuffle(X) ,-7) ,4,6) ,4) ) +transpose((X|X) ,7) ) +arpeggio((((X+step((arpeggio(X) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) ,12) ) +transpose((X|X) ,4) ) +transpose(arpeggio(transpose(step(transpose(X,4) ,12) ,-5) ) ,7) ) ) ) +transpose(transpose(step(transpose(transpose(X,-7) ,4) ,12) ,-7) ,-5) ) +(((transpose(step(X,12) ,4) +transpose(echo(arpeggio(X) ,4,6) ,7) ) +transpose(((transpose((X+X) ,-5) +transpose(transpose(transpose(X,-5) ,-5) ,4) ) +transpose((X|X) ,7) ) ,7) ) +transpose(echo(step(((transpose(X,4) +transpose(arpeggio(X) ,7) ) |step(X,12) ) ,12) ,4,6) ,12) ) ) +((arpeggio(((((transpose(step(transpose(X,-7) ,12) ,-7) +transpose(transpose(shuffle(X) ,-5) ,4) ) +transpose(step(shuffle((X+X) ) ,12) ,7) ) +transpose((echo(arpeggio(((X+X) +X) ) ,4,6) |((step(X,12) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ) +transpose((X+transpose(echo(step(X,12) ,4,6) ,12) ) ,7) ) ) ,4) ) +transpose((transpose(((transpose(X,-7) +transpose((arpeggio(X) +transpose(shuffle(X) ,7) ) ,4) ) +transpose(step(transpose(((X+X) +transpose(transpose(X,4) ,12) ) ,-5) ,12) ,7) ) ,-7) +transpose(echo(echo(arpeggio(((X+transpose(X,4) ) +transpose(X,7) ) ) ,4,6) ,4,6) ,12) ) ,7) ) ) +transpose((step((X+transpose(X,4) ) ,12) +transpose(echo(transpose(transpose(arpeggio(X) ,-5) ,-7) ,4,6) ,12) ) ,12) ) +(arpeggio((echo(transpose(echo((transpose((X+transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ) ,-5) |transpose(transpose(arpeggio(X) ,4) ,-7) ) ,4,6) ,4) ,4,6) +transpose(((transpose(X,4) +transpose(transpose(arpeggio((transpose(X,-5) +transpose(arpeggio((X|X) ) ,12) ) ) ,-7) ,4) ) +transpose(echo(transpose(transpose(X,4) ,-5) ,4,6) ,7) ) ,12) ) ) |(((shuffle((((X|X) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ) +transpose(step(X,12) ,7) ) ) +transpose(transpose(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-7) ,4) ,4) ) +transpose(step(((transpose(shuffle(X) ,-7) +transpose(echo((step(X,12) +transpose(X,-5) ) ,4,6) ,4) ) +transpose(shuffle(shuffle(X) ) ,7) ) ,12) ,7) ) +transpose(transpose(step((arpeggio(shuffle(transpose(X,-5) ) ) +transpose((((echo(X,4,6) |step(X,12) ) +transpose(step(X,12) ,4) ) +transpose(transpose(((arpeggio(X) +transpose(X,4) ) +transpose(X,7) ) ,-5) ,7) ) ,4) ) ,12) ,-7) ,7) ) ) ) ) +(transpose(echo((shuffle((X+transpose(step(echo(((X+transpose(X,4) ) +transpose(X,7) ) ,4,6) ,12) ,7) ) ) +(((step(step(X,12) ,12) +transpose(((transpose(X,-7) +transpose(arpeggio(transpose(X,-5) ) ,4) ) +transpose(arpeggio((X+transpose(X,7) ) ) ,7) ) ,4) ) +transpose(arpeggio((X+transpose(X,7) ) ) ,7) ) +(((step(echo((X+X) ,4,6) ,12) +transpose(transpose(X,4) ,4) ) |echo(arpeggio(((echo(X,4,6) +transpose(X,4) ) +transpose(X,7) ) ) ,4,6) ) +echo(((X+transpose(X,4) ) +transpose(X,7) ) ,4,6) ) ) ) ,4,6) ,4) +transpose((((echo(((((X+step(X,12) ) +((X+transpose(X,4) ) +transpose(X,7) ) ) +transpose(echo(transpose(transpose(transpose(X,4) ,4) ,-5) ,4,6) ,4) ) +transpose((arpeggio(((X+transpose(transpose(X,-5) ,4) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) ) +transpose((transpose(X,4) |X) ,7) ) ,7) ) ,4,6) |step(shuffle(transpose(echo(transpose(X,4) ,4,6) ,-5) ) ,12) ) +transpose(transpose(step(transpose(((((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(echo(X,4,6) ,4) ) +transpose(X,7) ) +((((arpeggio(X) +transpose(X,4) ) +transpose(((X+transpose(X,4) ) +transpose(step(X,12) ,7) ) ,7) ) +transpose(((echo(X,4,6) +transpose((X+transpose(step(X,12) ,7) ) ,4) ) +transpose((X+echo(X,4,6) ) ,7) ) ,4) ) +transpose(echo((((X|X) +transpose(X,4) ) +transpose(X,7) ) ,4,6) ,7) ) ) +(echo(((X+transpose(X,4) ) +transpose(X,7) ) ,4,6) +transpose(X,12) ) ) ,4) ,12) ,4) ,7) ) +((echo((shuffle(echo(step(((X+transpose(X,12) ) +X) ,12) ,4,6) ) |step(arpeggio(((step(step(((((X+transpose(X,4) ) +transpose(X,7) ) +transpose((X+X) ,4) ) +transpose(X,7) ) ,12) ,12) +transpose(shuffle(step(arpeggio(X) ,12) ) ,4) ) +transpose((X+X) ,7) ) ) ,12) ) ,4,6) +transpose(transpose(echo(step((echo(step(step(X,12) ,12) ,4,6) +(transpose(step(X,12) ,4) +transpose(transpose(X,-5) ,7) ) ) ,12) ,4,6) ,-5) ,4) ) +transpose((echo(echo(echo(echo(transpose(echo((X+X) ,4,6) ,-5) ,4,6) ,4,6) ,4,6) ,4,6) +arpeggio(echo(transpose(((echo(X,4,6) +transpose(arpeggio(X) ,4) ) +transpose(X,7) ) ,4) ,4,6) ) ) ,7) ) ) ,7) ) ) ,12)
random seed used was 64

NOTE: Generated phrase was too large ( 7339 ) , it has been truncated at 5000 notes. EXPR = (shuffle(((arpeggio(echo(((((transpose(transpose((((echo(arpeggio(X) ,4,6) |(step(echo(X,4,6) ,12) +X) ) +transpose(transpose(((X+transpose(step((X|X) ,12) ,4) ) +transpose(step((X|X) ,12) ,7) ) ,-5) ,4) ) +transpose(shuffle(shuffle(((X+transpose(X,4) ) +transpose(X,7) ) ) ) ,7) ) ,4) ,4) +transpose(transpose(step(((X|(arpeggio(echo(X,4,6) ) |transpose(X,-5) ) ) +transpose(step(arpeggio(transpose(X,-5) ) ,12) ,12) ) ,12) ,-7) ,4) ) +transpose(step(transpose(echo(arpeggio((echo(step(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ,4,6) +transpose(shuffle((transpose(X,-5) +transpose((X+X) ,12) ) ) ,7) ) ) ,4,6) ,4) ,12) ,7) ) +transpose(((transpose(arpeggio(transpose(transpose(X,4) ,-5) ) ,4) +transpose(shuffle(step((((step(X,12) +transpose(shuffle((X|X) ) ,4) ) +transpose(transpose((X|X) ,-7) ,7) ) |(transpose((X+X) ,-7) |(X|X) ) ) ,12) ) ,4) ) +transpose(shuffle((((transpose(((X+X) |((X+transpose(X,4) ) +transpose(X,7) ) ) ,4) |echo((((X+transpose(X,4) ) +transpose(X,7) ) +transpose((X|X) ,7) ) ,4,6) ) +transpose(((X+transpose(echo(X,4,6) ,4) ) +transpose(X,7) ) ,4) ) +transpose((((arpeggio(step(transpose(X,4) ,12) ) +X) +transpose((step(X,12) +transpose(transpose((X+X) ,4) ,7) ) ,4) ) +transpose(transpose(X,-7) ,7) ) ,7) ) ) ,7) ) ,4) ) +transpose(step(((((step(arpeggio(transpose(X,4) ) ,12) |((arpeggio((((X+(X|X) ) +transpose((arpeggio(X) +transpose(transpose(X,-5) ,7) ) ,4) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) ) +transpose(((arpeggio(X) +transpose(X,7) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) ,12) ) +transpose(transpose(transpose(X,-5) ,-5) ,12) ) ) +transpose(echo(step((((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(X,12) ) +transpose(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-7) ,4) ) +transpose(arpeggio((X+transpose(X,12) ) ) ,7) ) ,12) ,4,6) ,4) ) +transpose(echo(((transpose(arpeggio(X) ,4) +(transpose(X,4) +transpose(echo(X,4,6) ,7) ) ) |(X+transpose(arpeggio(step(X,12) ) ,7) ) ) ,4,6) ,7) ) +transpose(step(transpose(echo(X,4,6) ,-5) ,12) ,12) ) ,12) ,7) ) ,4,6) ) |step(shuffle(((echo(transpose(transpose(arpeggio(arpeggio(X) ) ,-7) ,4) ,4,6) |arpeggio(arpeggio((X|X) ) ) ) +shuffle((transpose(X,-5) +step(transpose(X,4) ,12) ) ) ) ) ,12) ) +transpose(echo((echo(transpose(transpose((X|shuffle(X) ) ,-7) ,4) ,4,6) +transpose((arpeggio(echo(arpeggio(step((echo(echo(X,4,6) ,4,6) +step(arpeggio(X) ,12) ) ,12) ) ,4,6) ) |step(shuffle(step(((arpeggio(shuffle((X|X) ) ) +transpose((transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-7) |(((arpeggio(X) +X) +transpose((X+transpose(X,7) ) ,4) ) +transpose(step(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ,7) ) ) ,4) ) +transpose(step(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ,7) ) ,12) ) ,12) ) ,12) ) ,4,6) ,7) ) ) +transpose(step(((step(transpose(step(arpeggio((((step(((echo(X,4,6) +transpose(echo(X,4,6) ,4) ) +transpose((X+echo(X,4,6) ) ,7) ) ,12) |arpeggio(arpeggio(arpeggio(X) ) ) ) +transpose(((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(transpose(X,4) ,12) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ) ,4) ) +transpose(echo(((X+transpose(transpose(X,4) ,4) ) +transpose(transpose(X,-7) ,7) ) ,4,6) ,7) ) ) ,12) ,-7) ,12) +transpose((((arpeggio(step(arpeggio(((X+X) |(X|arpeggio(X) ) ) ) ,12) ) +transpose(arpeggio(((shuffle((transpose(arpeggio(X) ,-5) |arpeggio(transpose(shuffle(X) ,4) ) ) ) +transpose((arpeggio(arpeggio(X) ) +arpeggio(shuffle(arpeggio(X) ) ) ) ,4) ) +transpose(((transpose(shuffle(step(X,12) ) ,-5) +transpose((((X+transpose(X,4) ) +transpose(X,7) ) |X) ,12) ) |((X+transpose(((arpeggio(X) +transpose(X,4) ) +transpose(transpose(X,-5) ,7) ) ,4) ) +transpose(shuffle(transpose(X,-5) ) ,7) ) ) ,7) ) ) ,7) ) +transpose(((shuffle(shuffle(arpeggio((((shuffle(X) +transpose(((transpose(X,-7) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ) +transpose(X,7) ) ,12) ) +transpose((((X+transpose(X,7) ) +transpose(X,4) ) +transpose(transpose(X,-7) ,7) ) ,4) ) +transpose(transpose(X,-5) ,7) ) ) ) ) +transpose(step(transpose((transpose(((X+transpose((X|X) ,4) ) +transpose((transpose((X|X) ,-5) +transpose(echo(X,4,6) ,-5) ) ,7) ) ,4) +transpose(shuffle(echo((shuffle(X) +(transpose(X,-5) +transpose(X,12) ) ) ,4,6) ) ,4) ) ,4) ,12) ,4) ) +transpose(arpeggio(transpose(((transpose((((shuffle(echo(X,4,6) ) +transpose(transpose(step(X,12) ,4) ,4) ) +transpose(transpose(X,-5) ,7) ) |step(((X|X) +transpose((X+transpose(X,12) ) ,7) ) ,12) ) ,-7) +transpose(transpose(echo(shuffle(((X+transpose((X+X) ,4) ) +transpose((X|X) ,7) ) ) ,4,6) ,-7) ,4) ) +transpose((transpose(step(arpeggio(X) ,12) ,4) +transpose(transpose(transpose(arpeggio(step(X,12) ) ,-7) ,4) ,12) ) ,7) ) ,4) ) ,7) ) ,4) ) +transpose((transpose(step(((transpose(transpose(echo(X,4,6) ,4) ,4) |echo(transpose(((X+X) +echo(X,4,6) ) ,-5) ,4,6) ) +transpose(step(transpose(step(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ,4) ,12) ,-5) ) ,12) ,-7) |(step((shuffle(shuffle(arpeggio(step(X,12) ) ) ) |echo(step(transpose(X,-5) ,12) ,4,6) ) ,12) +transpose(transpose(arpeggio(transpose((X+transpose(X,7) ) ,4) ) ,-7) ,12) ) ) ,7) ) ,4) ) +transpose((step((((echo((X+X) ,4,6) +X) +(((step(X,12) |echo(X,4,6) ) +transpose(arpeggio(echo(echo(X,4,6) ,4,6) ) ,4) ) +transpose((step(X,12) +transpose(X,7) ) ,7) ) ) +shuffle(((step(echo(X,4,6) ,12) +transpose(step(((X+transpose(X,4) ) +transpose(arpeggio(X) ,7) ) ,12) ,4) ) +transpose(echo(arpeggio(X) ,4,6) ,7) ) ) ) ,12) |step(step((shuffle(transpose(transpose(echo(X,4,6) ,-5) ,-5) ) |(step(transpose(step(step(X,12) ,12) ,4) ,12) +step(((X+shuffle(X) ) +transpose((((X+transpose(X,12) ) +transpose(X,4) ) +transpose(X,7) ) ,7) ) ,12) ) ) ,12) ,12) ) ,7) ) ,12) ,7) )
random seed used was 0 EXPR = arpeggio(arpeggio(transpose((step((step((arpeggio((((step(arpeggio(transpose(X,4) ) ,12) +transpose(transpose(echo(X,4,6) ,-5) ,-5) ) +transpose(transpose(((echo((X|X) ,4,6) +transpose(arpeggio((X+X) ) ,4) ) +transpose(X,7) ) ,4) ,4) ) +transpose(transpose(transpose(arpeggio(shuffle(((transpose(X,4) +transpose(echo(X,4,6) ,4) ) +transpose(X,7) ) ) ) ,4) ,4) ,7) ) ) |((shuffle((X+transpose(X,12) ) ) +transpose(X,12) ) +transpose((((shuffle(step(echo(X,4,6) ,12) ) +transpose(step((((X+transpose(X,4) ) +transpose(X,7) ) |arpeggio(X) ) ,12) ,7) ) +transpose(step(((step(shuffle(X) ,12) +transpose(step(echo(X,4,6) ,12) ,4) ) +transpose(transpose((X+transpose(X,7) ) ,4) ,7) ) ,12) ,4) ) +transpose(((((transpose(arpeggio((X+(X+X) ) ) ,-5) +transpose(echo(X,4,6) ,12) ) +transpose(((((X+transpose(transpose((X+X) ,4) ,4) ) +transpose(shuffle(((X+transpose(X,4) ) +transpose(X,7) ) ) ,7) ) +transpose((((X+transpose(X,4) ) +transpose(X,7) ) +transpose(X,7) ) ,4) ) +transpose(echo(echo(shuffle(X) ,4,6) ,4,6) ,7) ) ,4) ) +transpose(transpose((arpeggio(transpose(X,4) ) +((X+transpose(X,12) ) +transpose(X,7) ) ) ,-5) ,7) ) +transpose(step((echo(arpeggio(X) ,4,6) +transpose((step(X,12) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,12) ) ,7) ) ,12) ,7) ) ,7) ) ,12) ) ) ,12) |shuffle(transpose((((((((shuffle(arpeggio(echo(shuffle(X) ,4,6) ) ) +transpose(arpeggio(((X+transpose(arpeggio(X) ,4) ) +transpose((X+X) ,7) ) ) ,4) ) +transpose(arpeggio(arpeggio(X) ) ,7) ) +transpose((((step(transpose(X,-7) ,12) +transpose(step(transpose(X,-5) ,12) ,4) ) +transpose(((arpeggio((X+transpose(X,7) ) ) +transpose((echo(X,4,6) +X) ,4) ) +transpose(arpeggio(X) ,7) ) ,7) ) +transpose(shuffle(X) ,-5) ) ,4) ) +transpose(arpeggio(transpose(((transpose(X,-7) +transpose(transpose((X+transpose(X,12) ) ,4) ,4) ) +transpose((step(X,12) +transpose(arpeggio(X) ,12) ) ,7) ) ,4) ) ,7) ) +transpose(transpose(shuffle((transpose(arpeggio(X) ,-7) |shuffle(X) ) ) ,4) ,4) ) +transpose((transpose(step(X,12) ,-5) +((step(echo(arpeggio(X) ,4,6) ,12) +transpose(((X+transpose(transpose(X,-5) ,4) ) +transpose(step(transpose(X,-5) ,12) ,7) ) ,4) ) +transpose(transpose(X,-5) ,7) ) ) ,7) ) +transpose(transpose(transpose(arpeggio(X) ,-5) ,4) ,12) ) ,-5) ) ) ,12) +transpose(step(step(step((echo(((shuffle((((X+transpose(X,7) ) +transpose(transpose(X,4) ,4) ) +transpose(X,7) ) ) +transpose(transpose(transpose(step(X,12) ,-7) ,-5) ,7) ) |(echo(((X|transpose(X,-7) ) +arpeggio(transpose(X,-5) ) ) ,4,6) +((echo(arpeggio(step(X,12) ) ,4,6) +transpose((X|arpeggio(X) ) ,4) ) +transpose(step((((X|X) +transpose(arpeggio(X) ,4) ) +transpose((X|X) ,7) ) ,12) ,7) ) ) ) ,4,6) +step(((step(echo((X+transpose((X+X) ,7) ) ,4,6) ,12) +shuffle(transpose(shuffle(step((shuffle(X) +transpose(transpose(X,4) ,12) ) ,12) ) ,4) ) ) +transpose(arpeggio(echo((transpose(((arpeggio(X) +transpose(transpose(arpeggio(X) ,-5) ,4) ) +transpose(transpose(X,-5) ,7) ) ,4) +transpose((((shuffle(X) +transpose(X,7) ) +shuffle((X+transpose(X,7) ) ) ) |((arpeggio(X) +transpose(X,4) ) +transpose(transpose(step(X,12) ,4) ,7) ) ) ,12) ) ,4,6) ) ,12) ) ,12) ) ,12) ,12) ,12) ,12) ) ,4) ) )
random seed used was 0 EXPR = ((step(echo(transpose(arpeggio(arpeggio(transpose((((echo((X|X) ,4,6) +transpose(step(X,12) ,4) ) +transpose(transpose(X,4) ,7) ) |((transpose(X,4) +X) +step(transpose(X,-7) ,12) ) ) ,-5) ) ) ,4) ,4,6) ,12) +transpose(echo((echo(echo(arpeggio(((shuffle(((shuffle(shuffle(transpose(arpeggio(shuffle(X) ) ,-7) ) ) +echo(step((((X+transpose(X,4) ) +transpose(X,7) ) +X) ,12) ,4,6) ) +transpose((transpose((transpose(transpose(X,-5) ,-7) +step(transpose(X,-5) ,12) ) ,-5) +transpose(((echo(arpeggio(arpeggio(X) ) ,4,6) +step(X,12) ) |transpose(arpeggio(transpose((X|X) ,-5) ) ,-7) ) ,7) ) ,7) ) ) +transpose(echo(step(((transpose(X,-7) +transpose(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-7) ,12) ) +arpeggio(((X+transpose(X,4) ) +transpose(X,7) ) ) ) ,12) ,4,6) ,4) ) +transpose(step((transpose((arpeggio((X+arpeggio((transpose(X,-5) |X) ) ) ) +transpose(arpeggio(shuffle(((X|X) |(X+transpose(X,12) ) ) ) ) ,7) ) ,4) +echo(((X+transpose(transpose(X,-5) ,4) ) +transpose(shuffle(X) ,7) ) ,4,6) ) ,12) ,7) ) ) ,4,6) ,4,6) +transpose((transpose(arpeggio(arpeggio(transpose(transpose((step(step(X,12) ,12) +transpose((((X+transpose(X,12) ) +transpose(X,-5) ) +(X|X) ) ,12) ) ,-5) ,4) ) ) ,-7) +transpose(step(transpose((((((transpose(transpose((X+transpose(shuffle(X) ,7) ) ,-7) ,-5) +transpose(shuffle(transpose(step(X,12) ,-7) ) ,4) ) +transpose(arpeggio(shuffle(((transpose(X,-7) +transpose(X,12) ) +echo(((X+transpose(X,4) ) +transpose(X,7) ) ,4,6) ) ) ) ,7) ) +transpose(((X+transpose((X+X) ,4) ) +transpose(shuffle(X) ,7) ) ,4) ) +transpose(arpeggio(arpeggio(step(step(step(X,12) ,12) ,12) ) ) ,7) ) |(((shuffle(shuffle((X|arpeggio(arpeggio(X) ) ) ) ) +transpose(transpose((((transpose(X,-7) +transpose((X+transpose(X,12) ) ,4) ) +transpose(arpeggio(X) ,7) ) +(X+(X+X) ) ) ,-7) ,7) ) +transpose((echo(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ,4,6) |(X+echo(((X+transpose(X,4) ) +transpose(X,7) ) ,4,6) ) ) ,4) ) +transpose((step((step(X,12) +transpose(echo(step(X,12) ,4,6) ,-5) ) ,12) +transpose(((step(transpose((X+transpose(X,12) ) ,-5) ,12) +transpose(((echo(X,4,6) +transpose(X,4) ) +transpose(((X+transpose(shuffle(X) ,4) ) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,7) ) ,7) ) ,4) ) +transpose(arpeggio(step(X,12) ) ,7) ) ,-5) ) ,7) ) ) ,-5) ,12) ,12) ) ,12) ) ,4,6) ,4) ) +transpose(arpeggio(((((((X+transpose(X,4) ) +transpose(echo(X,4,6) ,7) ) |(((X+transpose(transpose(((X+transpose((X+transpose(X,12) ) ,4) ) +transpose(step(X,12) ,7) ) ,-5) ,4) ) +transpose(((echo(X,4,6) +transpose((X+X) ,4) ) +transpose((X+transpose(X,7) ) ,7) ) ,7) ) +transpose(((transpose((X+X) ,-7) +step(X,12) ) +echo(transpose(arpeggio(X) ,4) ,4,6) ) ,12) ) ) +transpose(shuffle(shuffle(transpose(step(arpeggio(echo(echo(X,4,6) ,4,6) ) ,12) ,-7) ) ) ,12) ) +transpose(step(transpose(arpeggio((arpeggio(transpose(step((echo(X,4,6) +shuffle(X) ) ,12) ,-7) ) +arpeggio(echo(X,4,6) ) ) ) ,-5) ,12) ,4) ) +transpose(transpose(((((((arpeggio(echo(X,4,6) ) +transpose(shuffle(arpeggio(step(arpeggio(transpose(transpose(X,4) ,-5) ) ,12) ) ) ,4) ) +transpose(((((((((shuffle(X) +X) +transpose(transpose(X,-7) ,4) ) +transpose(transpose(transpose(X,4) ,4) ,7) ) +transpose((arpeggio(X) |arpeggio(X) ) ,4) ) +transpose(transpose(X,-5) ,4) ) +transpose(((((arpeggio(X) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ) +transpose(arpeggio(X) ,7) ) +transpose((arpeggio(X) +transpose(X,7) ) ,4) ) +transpose(((X+X) |X) ,7) ) ,7) ) +transpose((echo(transpose((echo((X+transpose(X,12) ) ,4,6) +transpose(transpose(X,4) ,-7) ) ,-5) ,4,6) |step(X,12) ) ,4) ) +transpose((((X+transpose(shuffle(step(transpose((X|X) ,-7) ,12) ) ,12) ) +transpose((step((echo(X,4,6) +transpose(((X|X) +transpose(X,7) ) ,7) ) ,12) |transpose(X,4) ) ,4) ) +transpose(step((((X+X) +transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ) +transpose(shuffle(X) ,7) ) ,12) ,7) ) ,7) ) ,7) ) +transpose(transpose((((shuffle((transpose(X,-7) |(arpeggio(transpose(X,-5) ) +((X+transpose(X,4) ) +transpose(X,7) ) ) ) ) +transpose(transpose(step(transpose(X,4) ,12) ,4) ,7) ) +transpose(arpeggio(X) ,12) ) +transpose((((echo(X,4,6) +transpose(X,4) ) +transpose(X,7) ) |shuffle((X|X) ) ) ,4) ) ,4) ,7) ) +transpose(echo((((shuffle(shuffle(((transpose(step(X,12) ,4) +transpose(transpose(echo(X,4,6) ,-5) ,4) ) +transpose(((shuffle(X) +transpose(echo(X,4,6) ,4) ) +transpose(arpeggio(X) ,7) ) ,7) ) ) ) |(((step(X,12) |echo(echo(X,4,6) ,4,6) ) +shuffle(shuffle(X) ) ) +transpose(transpose(X,-7) ,7) ) ) +transpose(((X+X) +transpose(transpose(X,-5) ,12) ) ,4) ) +transpose(((shuffle((arpeggio(transpose(step(X,12) ,-5) ) +transpose((transpose(X,4) |(echo(X,4,6) +transpose(echo(X,4,6) ,7) ) ) ,7) ) ) +transpose(((((transpose(((transpose(X,-7) |step(X,12) ) |arpeggio((X|X) ) ) ,-7) +transpose(((((arpeggio(X) +transpose(X,4) ) +transpose(X,7) ) +transpose(step(((shuffle(X) +transpose(transpose(X,-5) ,4) ) +transpose(X,7) ) ,12) ,4) ) +transpose(transpose(((echo(X,4,6) +transpose(echo(X,4,6) ,4) ) +transpose((transpose(X,-7) |X) ,7) ) ,4) ,7) ) ,4) ) +transpose(((step((shuffle(X) +transpose(X,12) ) ,12) +transpose(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ,12) ) +((transpose(X,-7) +transpose(echo(X,4,6) ,4) ) +transpose(transpose(X,-7) ,7) ) ) ,7) ) +transpose(transpose((((X+X) +transpose(step(arpeggio(X) ,12) ,4) ) +transpose(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,-7) ,7) ) ,4) ,4) ) +transpose(transpose((((((X+transpose(X,4) ) +transpose(X,7) ) +(X+X) ) |((X+X) +X) ) +transpose(((X+transpose(arpeggio(X) ,4) ) +transpose(X,7) ) ,7) ) ,4) ,7) ) ,4) ) +transpose(step(((step(step(transpose(X,4) ,12) ,12) +transpose((((transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) +transpose(transpose(transpose(X,-7) ,4) ,4) ) +transpose(arpeggio(X) ,7) ) |(echo(X,4,6) |echo(echo(X,4,6) ,4,6) ) ) ,7) ) |transpose(X,-7) ) ,12) ,7) ) ,7) ) ,4,6) ,4) ) +transpose((((transpose(arpeggio(X) ,-7) |((echo(X,4,6) +transpose(arpeggio(X) ,4) ) +transpose(step(X,12) ,7) ) ) +transpose(transpose((((transpose(X,4) |(X+transpose(X,7) ) ) +transpose(arpeggio(step(X,12) ) ,4) ) +transpose(transpose(X,-5) ,7) ) ,-7) ,4) ) +transpose(arpeggio(X) ,7) ) ,7) ) |(step(step(step(arpeggio(echo(step(step(X,12) ,12) ,4,6) ) ,12) ,12) ,12) |arpeggio((echo(transpose(((shuffle(step(transpose(transpose(X,4) ,-5) ,12) ) +transpose(((X+transpose(X,7) ) +X) ,4) ) +transpose(transpose(echo(shuffle(arpeggio(X) ) ,4,6) ,4) ,7) ) ,4) ,4,6) +(echo((((arpeggio(transpose((X+transpose(X,7) ) ,4) ) +transpose((transpose(X,-7) +transpose(echo(X,4,6) ,7) ) ,4) ) +transpose(echo(arpeggio(((transpose(X,-7) +transpose(X,4) ) +transpose(transpose(X,-7) ,7) ) ) ,4,6) ,7) ) |echo(X,4,6) ) ,4,6) +transpose(((arpeggio((((X+transpose(X,4) ) +transpose(X,7) ) +(((X+transpose(X,12) ) +transpose(transpose(((X+transpose(X,4) ) +transpose(X,7) ) ,4) ,4) ) +transpose(transpose(X,-7) ,7) ) ) ) +transpose(((echo(X,4,6) +transpose(transpose((X+X) ,4) ,4) ) +transpose(step((((X+transpose(X,12) ) +transpose(X,4) ) +transpose(arpeggio(X) ,7) ) ,12) ,7) ) ,4) ) +transpose(step(arpeggio(((step(X,12) +transpose(X,4) ) +transpose((X|((X+transpose(X,4) ) +transpose(X,7) ) ) ,7) ) ) ,12) ,7) ) ,7) ) ) ) ) ) ,-5) ,7) ) ) ,7) )
random seed used was 0

NOTE: Generated phrase was too large ( 12658 ) , it has been truncated at 5000 notes.


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