As well as concert works, he has composed extensively for the theatre.
He was also part of the cabaret double-act Kit and The Widow alongside Kit Hesketh-Harvey.
Sisson was educated at King's College, Taunton and the University of Cambridge, where he was a member of the Footlights.
He currently teaches A-Level music and composition at Luton Sixth form college, and regularly composes and plays for radio and television.