Updated Diagram
I revisited this patch and spent some time tuning it up. The CV inputs to the Miniwave are now quantized. Other differences: the VCOs are initially tuned in unison; the Modcan Quantizers are set to the Double Harmonic scale (Bank B), the MPX-1 Delay>Detune preset is used, as in the original Undersea.
The recording is a snippet of a perpetual self-running patch. I like to limit some of the parameters, such as the chosen scale and post-processing effects for each take, to get a different feeling.