I had to read several times but I understood ! Clever !
For quick recordings on the fly, I think hold is better, because with One2 you can invert rec start / stop. With midi tracks control I’d need to use a midi processor to play just after rec.
But it’s even better to use audio free tracks to play. I already tested it once (from @dustmotes idea) :
Cascading playable fun - #22 by sezare56