Few British jazz musicians have been at the cutting edge of as many movements as the late Ian Carr. A pioneer bebop player in his youth, a colleague of Eric Burdon and John McLaughlin in the R'n'B explosion of the 60s, co-leader of one of Britain's most innovative jazz groups - the Rendell-Carr Quintet, a free-jazz colleague of John Stevens and Trevor Watts, and the founding father of jazz rock in the UK, with his band Nucleus, Carr's musical career...