The electric guitar is an instrument of unique sounds. A vibrato bar enables the guitarist to completely detune the instrument and pull it back on the fly. Many notable guitar players have used this effect over the years. Early in electric guitar history, Chet Atkins favored the Bigsby unit, and it can be occasionally heard in a number of his recordings. Generally, Atkins used the Bigsby just to "dip" chords. His 1978 recording of "It Don't Mean a Thing (If It Ain't Got That Swing)" with Les Paul (another Bigsby user) is a typical example of how Atkins used the device.