Please test Unison mode

[probonopd]

Imagine we had the ability, for each Tone Generator (TG), to use not just one but up to 4 voices in unsion, all slightly detuned and stereo shifted? That'd make up to 8 x 4 = 32 Tone Generators as part of the same Performance.

Well, that's what I've been working on for a while. In my tests it seems to be working well on a RPi Zero 2 W, but more testing is needed. Feedback appreciated!

Description and build for testing in

• Implement Unison Mode using multiple additional TGs #892

[Banana71]

#892 (comment)

[probonopd]

Yes, it's still some work to do but at least conceptually this is how I imagine this should work.