Malcolm Cecil was a British jazz bassist, record producer, engineer, electronic musician and teacher. He was a founding member of a leading UK jazz quintet of the late 1950s, the Jazz Couriers, before going on to join a number of British jazz combos led by Dick Morrissey, Tony Crombie and Ronnie Scott in the late 1950s and early 1960s. He later joined Cyril Davies and Alexis Korner to form the original line-up of Blues Incorporated. Cecil subsequently collaborated with Robert Margouleff to form the duo TONTO's Expanding Head Band, a project based on a unique combination of synthesizers which led to them collaborating on and co-producing several of Stevie Wonder's Grammy-winning albums of the early 1970s. The TONTO synthesizer was described by Rolling Stone as "revolutionary".

Ronnie Scott OBE was a British jazz tenor saxophonist and jazz club owner. He co-founded Ronnie Scott's Jazz Club in London's Soho district, one of the world's most popular jazz clubs, in 1959.