Taking the Moog 15 as a starting point, I’ve modified the workflow, adding LFOs, different envelopes, couple of other things…moved stuff around.
Workflow sort of moves from top to bottom. The second row has a bunch of sub-mixers to help the signal path.

There are 2 patches, a Sequencer setup and a external MIDI keyboard setup (KB has mod wheel mapped to the filter cutoff).
Video is a demo of the sequencer.