MICROTONE 5000
MICROTONE 5000 is a polyphonic analog-style microtonal synthesizer.
It comes with 5000 microtonal tunings (also has western 12-TET setting), 128 presets (also can be user configured), 2 oscillators, 2 filters, 1 LFO, 7 LFO assigns, and 6 voices. It has very low CPU usage.