Isotope was a British jazz rock band, fronted by the guitarist Gary Boyle.
[1] Boyle founded the band in June 1972 and a first album, Isotope, was largely composed by their keyboardist Brian Miller.
[1] Clyne and Miller left in 1974, however, and were replaced by Hugh Hopper and Laurence Scott (born 7 February 1946) respectively.
[3] In late 1974, the band appeared on film on BBC 2's The Old Grey Whistle Test, playing "Spanish Sun" from the album.
Deep End was recorded in 1975 with two keyboardists; Zoe Kronberger and Frank Roberts.