In this video, Dana Countryman gives an overview of his very cool DIY Ondes Martenot Ring Controller project:

I’m building a Ring Controller, in the style of a vintage Ondes Martenot, to control my modular synthesizer. Here is the first video, showing my progress, so far.

I’m controlling a synthesizers.com Q125 Signal Processor, which in turn, is controlling an oscillator on the big synth.

This is a work in progress, and I’m continuing to complete this instrument.
Another video will follow this one, when it is completed.

Countryman has toured with French electronic musician Jean-Jacques Perrey, and is helping to keep happy Moog music alive.