Bob Murrell combined his knowledge of guitars and electronics to invent the GuitOrgan. It is a hybrid electric guitar and organ. The strings and frets are wired into a circuit such that the organ notes play when the string is fretted. The organ section in a Guitorgan is a 6-note polyphonic circuit, which allows full guitar chords to be played. There is also a button on the Guitorgan's neck that allows the use of open chords. The instrument also has conventional guitar pickups and the organ notes can be played alone or simultaneously with the guitar. The expert "Guitorganist" can use the Guitorgan's expression pedal to bring the organ in and out of the musical foreground, while playing the guitar at the same time,as if there were two musicians playing.