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.
ModulAir is a work in progress, currently in Beta, unfinished, as of now with only a bunch of quirky presets and a lousy documentation. I am not sure if it ever reaches the General Availability stage since I am constantly adding modules and stuff to it:-).
Fully modular architecture.
Up to 18 modules per patch.
39 module types available.
Polyphonic Voice and monophonic Master modules.
TUN/SCL micro-tuning file import.
Up to 64 voices polyphony.
MIDI Learn – all parameters can be controlled by MIDI CC.
Double precision audio processing.
Plug-in supports Windows and macOS (32-bit and 64-bit).
https://www.fullbucket.de/music/vst.html