Full Bucket Music has released a beta version of ModulAir, a free modular polyphonic software synthesizer for Windows and macOS.
ModulAir is a modular polyphonic software synthesizer for Microsoft Windows (VST) and Apple macOS (VST/AU) written in native C++ code for high performance and low CPU consumption.
WARNING!
ModulAir is a work in progress, unfinished, buggy, as of now with only a few quirky presets. Expect horrible things to happen. It is a clumsy unhandy complicated piece of software. I cannot even guarantee that the next version of ModulAir mpatible to any version you may download in the future or might already have downloaded.
You have been warned!
Anyway, ModulAir is currently in Beta stage. I am not sure if it ever reaches the General Availability stage since I am constantly adding modules and stuff to it. :-)
Visit: ModulAir