Polka, huh? Well, that could be several places, but a couple of polka-crazed areas are also key to modular synthesis. Wisconsin gave us the Wiard system and Grant Richter's module designs, and it's the current home state for Serge/STS. As for Minnesota, Foxtone in MNPLS now controls Buchla USA...so polka is no bar to modular synthesis!
OK, so let's presume an Intellijel 7u...hold up...
Hmmm...this isn't half bad:
OK...the tile row is now filled nicely. uMIDI to take advantage of the rear-panel MIDI/USB jacks, buffered mult for future expansion CV sending, QuadrATT for extra attentuators/mixing, a digital reverb, and the Intellijel I/O so, again, you can take advantage of the built-in 1/4" jacks.
Next row is all your stuff, arrayed more like a 'voice' with the trigger control and mult at one end and the Frames mixer at the other.
Third row is where I got busy. I added a master CVable clock, S&H/noise, and clock divider. With this array, you can divide the master clock for different tempi to the sequencer, the M32's sequencer, and the S&H if you so decide, or any combination thereof. Batumi (with the Poti control expander) adds four LFOs, and a Doepfer A-171-2 gives you a CVable slope gen for an extra envelope, LFO, slew gen, or what have you. These Serge-derived modules are super-useful for buttloads of functions.
Next to that, two more linear-only DC-coupled VCAs for processing control voltages and the like. Then the Dual ADSR, with that being the end of the modulation section. Next to that, an uMod II, which can be used for ring modulation, certain logic functions, or as yet another VCA. Polaris is next in the chain as your other VCF, with the Veils in position for mixing and/or more CV control right by the Clouds to do your granular manipulation before sending its output upwards to the Frames, then on to the I/O.
Layout seems right...the signal flow should be really clear, making it easy for both studio and performance work. And the M32's patchpanel is about dead-center to let the M32 be the primary 'voice', allowing it easy patching to any of its surrounding modules. Normally, I might've put this on the bottom row to get at the chiclet keyboard on it easier, but somehow, this makes more sense from a signal flow standpoint. Not too shabby, I think...