Part One Tonight's live relay from the Royal Albert Hall features Alfred Brendel as soloist in the Piano Concerto No 1 in D minor by Brahms with the London Symphony Orchestra leader MICHAEL DAVIS conducted by Claudio Abbado 8.20* The Promenaders During the interval Michael Berkeley looks at a unique group of music lovers, the Promenaders, including those who remember earlier years in the Queen's Hall. His survey also includes archive film of sm HENRY WOOD and SIR MALCOLM SARGENT 8.40* Part Two Debussy Nocturnes with the women's voices of the London Symphony Chorus Bartok The Miraculous Mandarin (Suite) Introduced by Michael Berkeley