David Lloyd Stewart (born 30 December 1950) is an English musician known for his work with the progressive rock bands Uriel, Egg, Khan, Hatfield and the North, National Health, and Bruford. Stewart is the author of two books on music theory and wrote a music column for Keyboard magazine (USA) for thirteen years. He has also composed music for TV, film and radio, much of it for Victor Lewis-Smith's production company. He has worked with singer Barbara Gaskin since 1981.... [more on Wikipedia]