Gabriel Prokofiev has just released a Signum Classics album of two of his concertos: his Concerto for Turntables No 1 and his Cello Concerto. James Jolly talked to the composer about the release and why the concerto as form appeals so strongly to him. The new recording features the Ural Philharmonic Orchestra conducted by Alexey Bogorad with Mr Switch on turntables and Boris Andrianov the cellist.