Unstable from Morphoice is a free polyphonic synthesizer inspired by the legendary Yamaha CS-80 analogue synthesizer.

The developer, Morphoice, describes Unstable as “in no way intended to be a CS-80 emulator, but still probably closer to the real hardware than anything out there”.

In recent weeks, unstable is the second classic Yamaha-inspired synth after BaconPaul’s TX81Z-inspired FM synth plugin – Six…