Patch is setup to be played by external KB. Good starting point for creating pads (normally I would have LFOs feeding into all the filters for more movement).
1. Mod Wheel is assigned to the Formant filter
2. The knob to the right of the VCFs is a master control for the filter cutoffs for all 4 VCFs.
3. The 2 rows are basically the same signal path (the second row VCO is an octave lower).

Normally I would have LFOs feeding into every filter connection to give them some movement.