I've been working on a library of abstractions that behaves like a modular synthesizer. It has all the usual modules: VCO, VCA, ADSR, VCF...
All modules work with audio signals from -5 to 5 "volts". Control signals are usually from 0 to 5 "volts". As in modular synthesizers, control signals can be used to make sound and viceversa.
I recommend using pd-l2ork. All externals used in b4p are within this package.
You can download it on this link:
There is a couple of examples in the "examples" folder.
Any feedback will be appreciated.