Get the micro-versions of the Mutable stuff and buy a Eurorack module capable of mixing your signals.
What's the relationship between those vendors and Mutable Instruments? I like Olivier Gillet's work and I like the idea of my dollars supporting MI.
But you'll want an envelope generator and a VCA to go with it.
If I am accumulating gear gradually, I can start out with overdubbing and use the Neutron's VCA and envelopes, I think.
Thanks again for your helpful responses.
-- RelaxedNapper
Mutable Instruments believes in open-sourcing their code. Those people crafting their own versions of Braids, Clouds, etc. aren't violating MI as far as I know. MI isn't your typical manufacturer. You can buy the micro modules and other from respected retailers like Detroit Modular and Perfect Circuit. MI supports the DIYers.
As far as I know, the Neutron only has one VCA. "You can never have enough VCAs." Take that to heart. VCAs can control audio as well as every kind of CV. I would say to try your approach and see if it is satisfactory. You can always try it and buy more modules if you're unhappy with the results.