- "Well, stone the crows, this Joseph is a clever kid” - Sir Tim Rice

- “More talent than you can shake a walking stick at” - David Finkle, Back Stage, New York

- "Great young talent" - John Dankworth

- "Many a musician twice his age might listen with a mixture of admiration and envy" - Peter Leavy, Cabaret Scenes

- "I am completely knocked out by him in every way…it’s been a long time since I heard somebody play that kind of piano, along with his charm and his wonderful singing." - Steve Ross

- "His piano playing is a cross between Oscar Peterson, Bill Evans and Les Dawson" - Ian Shaw