The other day someone asked me this question:
Can the Polyend Synth and Play (or Play+) be used to create live performances (as in: live record sequences) or can you improvise on existing tracks?
I think the answer is yes - with some practice and with keeping some things in mind.
In this video i (hopefully) go through the most important bits:
Hope this is of interest to some and sparks a lively discussion! 
I shared it over on polyend synth group too! Redirecting...
I would like to know if there is a better solution than using ableton or any daw to compose with Synth correctly… so a sequencer and song mode solution with easy editing.I have a Polyend tracker too I haven’t tried yet but I am scared of the limitations…if anyone as a good experience to share I would love having your feedback on the way you use Synth even with other devices.