The Lyricon used a bass clarinet mouthpiece, with a sprung metal sensor on the (non-vibrating) reed that detected lip pressure.
[6] Wind pressure was detected[6] by a diaphragm, which moved and changed the light output from an LED, which was in turn sensed by a photocell to give dynamic control.
The Lyricon I was originally priced at $3,295[7] which was quite expensive for the time, also probably one of the reasons why the instrument was sold only in small numbers.
All the Lyricons used the same saxophone style fingering system, with two octave keys above the left-hand thumb rest.
The Wind Synthesizer Driver and the Lyricon II also had a transposition footswitch feature, where a foot pedal could be used to transpose the entire range up or down one octave.