Beethoven’s Septett in E Flat Major, Op. 20 performed at the UMKC Conservatory of Music Chamber Music Series on March 5,1981. Artists:Mary Posses, flute; Franck Avril, oboe; Raymond Luedeke, clarinet; Nancy Cochran-Block, horn; Marita Abner, bassoon, assisted by Tiberius Klausner, violin; Hugh Brown, viola: Eva Hradetzky, cello; Michael Krutz, string bass.