claim: Sonny & Cher are R&B singers.
evidence: Adrian Francis Cruft -LRB- 10 February 1921 -- 20 February 1987 -RRB- was a British composer .. Cruft , the son of the double-bass player Eugene Cruft was educated at Westminster Abbey Choir School , Westminster School , and as a Boult conducting scholar at the Royal College of Music from 1938 , completing his studies there briefly in 1946-1947 after service in World War II .. Eugene Cruft. Eugene Cruft. Westminster Abbey Choir School. Westminster Abbey Choir School. Westminster School. Westminster School. Royal College of Music. Royal College of Music. World War II. World War II. Westminster Abbey. Westminster Abbey. He was a composition student of Gordon Jacob and Edmund Rubbra but also studied double bass with his father .. Gordon Jacob. Gordon Jacob. Edmund Rubbra. Edmund Rubbra. double bass. double bass. Cruft became chairman of the Composers ' Guild of Great Britain 1966 .. Cruft , called a `` performers ' composer '' by Roderick Swanston in an article in The Musical Times a couple of years after his death was , as a young chorister at Westminster Abbey , influenced by the revival of Tudor music and later by the counterpoint of Bach .. Roderick Swanston. Roderick Swanston. Westminster Abbey. Westminster Abbey. Tudor music. Tudor music. counterpoint. counterpoint. Bach. Johann Sebastian Bach. Grove 's music dictionary calls his music `` diatonic , firmly based in tradition and generally straightforward in idiom '' .. He composed church music as well as orchestral works and chamber music .