Helen MacGregor, music adviser for Kent, is the author of Music Express Years 1-2, and several best-selling A&C Black titles. She is also contributor to Channel 4's BAFTA award winning Grid Club. Stephen Chadwick is a composer, sound engineer and educationalist. He has written frequently for the London Philharmonic Orchestra education programme, BBC Bitesize, Disney, and Channel Four's Gridclub. He is the author of three of A&C Black's Roald Dahl musicals, Singing French and Singing English, and was composer and producer for the Music Express series.