Triosonate No.1 in E flat major,BWV 525 Trio sonata no.1 in E flat major, BWV 525 Trio sonata No.1 in E flat major,BWV 525 Sonata No.1 in E flat major BWV 525 Piano sonata no.31 in A flat major, op.110 Polonaise no.6 in A flat major,op.53 Polonaise no.6 in A flat major, op.53 Symphony no.1 in A flat major, op. 55 Piano sonata No. 11 in B flat major, op. 22 Piano sonata no. 11 in B-flat major, op. 22