One of my favourite combinations is combining FM and analog oscillators. This version has vibrato (with mod wheel alternative if required) implemented by an LFO sine via a VCA and combined with the V/Oct in Knob2, velocity sensitivity via the final Punch VCA, and after-touch controlling the Tangents steiner-parker filter’s resonance.

The Opulus retro FM module has one LFO scanning the morph variations. Two LFO’s are dedicated to the Basal smooth oscillator Mod 1 and Mod 2. The FM and analog output are combined in Knob 1.

Variations are provided in the Zip file.