Piano Trio No.4 in B flat major,Op.11 "Gassenhauer" Piano trio No. 4 in B flat major, op. 11 "Gassenhauer" Piano trio No. 4 in B flat major - "Gassenhauer" Piano trio No. 1 in E flat major, op. 1 no. 1 Piano trio No. 7 in B flat major, op. 97 "Archduke" Piano Trio No.1 in B flat major,op.21 Piano Trio No.1 in B flat major,op.21; Piano trio No. 6 in E flat major, op. 70 no. 2 Piano trio No. 9 in E flat major, op. 121a Piano trio in B flat major, op. 97 "archduke"