I develop my own electronic instruments and apps. A few of them are listed here.
Magnetic Resonators
Coil magnets are used to transmit sinusoidal vibrations to the piano strings. The strings are set in a permanent vibration and a floating sound builds up.
Shruti Harmonium
An app for creating Shruti soundscapes, programmed with Max/MSP.
The first prototype, programmed with Pure Data: