Gabriel Keen studied at Dartington College of Arts and London College of Music. He won second prize in the 5th British Contemporary Piano Competition, and has recently recorded works by contemporary composer Brian Inglis for CD release.

He has played with Hot Orange Big Band, London Swingfonia and Denmark Street Big Band, and is a member of soul band The Fabulations, classic fusion band The Weatherheads, vintage swing band Radio Nights Orchestra, jazz 10-piece Little Big Horn, the Bee Ororo band, and one of the current line-ups of the 80s pop band, Imagination featuring Errol Kennedy. He is an accompanist for jazz and opera singing classes at the City Lit in London.