I’m am rebuilding a FCB1010 into something that is more capable. To do this I have gutted the internals and installed a Teensy 4.1 and Teensy Audio card. I have delusions of it working like a bass pedal, MIDI sequencer and/or drum machine.
In this Video I explain how I programmed a simple mono synth. So far it has the ability to play in various scales including a major and minor scale. I have also added latch mode and an arpeggiator.