Music Matters - Alexander Goehr, Shostakovich Preludes and Fugues, Leif Segerstam

Tom Service catches up with Alexander Goehr at rehearsals for his new opera 'Promised End' which is fashioned from 24 short scenes from King Lear and which the composer says will be his last. Tom also explores Shostakovich's 24 Preludes and Fugues for piano with the author of a new book which looks at the complex background to these seminal works, and gets the latest score from Leif Segerstam, the Finnish composer, conductor and teacher who has so far published 220 symphonies.