jump
From TidalCycles userbase
jump
is essentially the no transition-transition. It jumps directly into the given pattern. The variants jumpIn, jumpIn' and jumpMod provide more useful capabilities.
Example: Say you have
d1 $ sound "hh*4"
then both of the following lines will have the same effect when evaluated:
d1 $ sound "hh*8"
jump 1 $ sound "hh*8" --`1` to change the pattern in `d1`