Abstract: A guitar controller for an electronic music synthesizer, especially a programmable music synthesizer of the VOYETRA (trademark) type, utilizes a Mylar pressure-resistive switch along the neck of the guitar for note selection and vibratile elements on the sound board for the strumming effect. Additional expression can be provided by the use of a tremolo bar, a sensor for the striking of said board and the pressure applied to the neck.
Abstract: A programmable music synthesizer has a keyboard which also generates an expression signal representing the pressure on the keyboard and utilizes the change in an infrared path length for producing this expression signal.