I recently got off my butt and finished the case and MIDI interface for the Theremax.
This video shows how bad I am at playing the Theremin. The first clip shows the continuous mode where the pitch antenna is controlling the pitch bend wheel. The second shows a more discrete approach, with a blues like scale mapped to the pitch antenna.
Still really hard to play though…
Still a long way to go with this, it really needs a “Theremin VST” with special control mappings to become as expressive as the real thing.
The next thing I need to examine is scaling the pitch response to give a more linear feel to the instrument. Along with some kind of calibration mode.