cool setup!
some gain/fuzz can make really crazy amounts of noise with the monotribe.
here is a very short example of a super basic fuzz circuit i made as an experiment, blended with the dry signal:
https://www.youtube.com/watch?v=CZtZMThJPo0
i've had more extensive jamming with the gain and using the volca sample as well and you can make some huge sounds, plus full wailing guitar solo type things. with just gain and a bit of distortion you can pull small harmonics out of the filter until they really colour the sound, and in some cases create almost full chord sounds, get some really rich notes out of the 'single' voice of the monotribe.
also a bit of delay on clean sounds makes a huge difference, i don't have any reverb gear to set that up but i'd imagine that would be cool too.