No.11 in B flat major op.22 No.12 in A flat major op.26 No.4 in E flat major op.7 Sonata in B flat major op. 22 Sonata in A flat major op. 26 No.13 in E flat major op.27 No.1 Sonata No.11 in B flat major, Op.22 Sonata in E flat major op. 7 No.11 in B flat major No.18 in E flat major op.31 No.3