Septet in E major, op. 20 for clarinet, horn, bassoon, violin, viola, violoncello and double bass Septet in E-flat major,Op.20 for Clarinet,Horn,Bassoon,Violin,Viola,Cello and Double-Bass Septett Es-Dur, Opus 20 fur Klarinette, Horn, Fagott, Violine, Viola, Violoncello und Kontrabass Septet in E flat major, op.20 for violin, viola, clarnet, horn, basson, violoncello and double bass Octet for clarinet, horn, bassoon, 2 violins, viola, violoncello and double bass op. 26, F major Sextet in E major, op. 81b, for two horns, two violins, viola and bass Piano quintet in A "Trout" for piano, violin, viola, cello and double-bass