A 4040 divider is at the heart of this patch. Some of the bits are driving a Melody Generator. Some of the bits are driving an 8 bit R/2R ladder that drives a LM348 VCO. The VCO has two CV inputs; the extra has a fast LFO at a low level to add some warble to it.
The Pitch Tracker was patched in for extra bonus fun.
The whole mess is mixed together.