Plot: Beethoven: Choral Symphony with the Vienna Philharmonic Orchestra Conducted by Claudio Abbado Karita Mattila (soprano) Alfreda Hodgson (mezzo-soprano) Jerry Hadley (tenor) Robert Holl (bass) BBC Symphony Chorus and the London Symphony Chorus Introduced by Richard Baker Beethoven's Ninth Symphony on the last Friday of the Promenade Concert season is a tradition established by Sir Henry Wood that continues to this day.