This is a video demonstrating craigtorso’s Ondestrak, a musical controller for MaxMSP inspired by the Ondes Martenot and built from a Gametrak video game controller:
The pitches are fairly imprecise here but I’m more or less riffing on the song Good Vibrations which, incidentally, features a Tannerin, an instrument conceptually similar to the Ondes Martenot. In this video I do not have the Ondestrak programmed to respond to the joysticks on either end of the ribbon controller. It is only outputting an unfiltered sine wive, varying in intensity with pressure asserted to the hinged base-board and varying in pitch with the position of the ribbon controller.
See the full instructions for building an Ondestrak on the Instructables website.