@dawid
I use the Cue of the OT when i improvise a melody before i put it i the mix.
What works best for me is to mute some Steps on the initial sequence and bring 'em Back in time after time. This Way i know the result will “fit”.
Besides that: muting and unmuting often reveals sounds i didn’t expect there to be. 
Did only a 30-40min live performance for now (and mostly for my friends).
Faaaaar away from performing in a regular club.