jumpIn
From TidalCycles userbase
jumpIn
takes the identifier of the "pattern swimlane" and an integer cycleCount. It will jump unaligned into the given pattern after cycleCount cycles have completed.
Example: Say you have this:
d1 $ sound "hh*4"
d2 $ sound "bd" --have a beat on the 1 for orientation
Then the subdivision on the hi-hat will increase 2 cycles after evaluation of the next line:
jumpIn 1 2 $ sound "hh*8" --`1` because `d1`
The transition will not line up with the beat on cycle boundary.