This synth is based around my new XYRPhi module for the modular-X Framework.
XYRPhi is designed for automatic crossfading between four oscillators (or any other inputs). The crossfading is variable from stepping through a continuous fade to a constant mix. Obviously it works at audio rate, too :-) Since this would be a bit limited I added a bunch of other things...
Presets are ...let´s say not polished. Often it is a good idea to feed this with a sequence or an arpeggiator.
Modular-X Framework is great and by Herwig Krass. Check the framework for documentation how to build your own modular within the modular,
more great modules, instructions to build modules, etc:
Short history of XYRPhi:
The XYRPhi was motivated by a discussion (quite some time ago) on Gearslutz about the Rotor module of the (very cool) Solaris synthesizer. After a bunch of false starts I got something similar by combining a vector-mixer with four oscillators on the corners with a quadrature oscillator for x and y crossfading. Obviously a huge feature creep started after that.
Documentation is in the attached .rtf file.