there is some related discussion in ER-301 Sound Computer and What about: an audio mangling monome module
ER-301 looks great, sadly i missed the first batch while trying to sell other modules to fund it. hopefully will get one from the next batch.
thinking about how you’d integrate TT with ER-301 the most obvious would be to have additional mod sources that would be controlled by TT remote commands, basically eliminating the need for patching. not sure about deeper integration, since you can have completely different chains set up so something like II ER.PLAYSAMPLE 1 might not even make sense if you don’t have a sample player in your chain.
also, it doesn’t have to be TT, i think a custom firmware for white whale or ansible could be created that could be designed to control a chain created specifically for this purpose. so, basically you’d load up some “MLR” scene on ER-301, connect ansible outs to ER ins and use a grid/arc to control it.