I know nothing about OT or its arranger mode but…
…in the absence of a more informed response, here’s this:
details:
the patch is based on the assumption that you want to:
- take one of a range of hit notes on the Roland SPD-SX
- use each note_on to create a “Stop/SPP/Play” sequence ,
- where each note number matches to a specific SPP
- and use Midihub to fulfil your task (you didn’t mention MH in your post)!
(see also the Description Panel of the patch)
I’ve included a short delay because I recall this being a thing with some Elektron devices.
It may be that this should be between the SPP Transforms and the final Start Transform instead…
… or both…
… or is actually unnecessary.
This will become apparent in testing.