Grosse fuge in B-flat major, op.133 Grosse Fugue in B flat major Op.133 6. "Grosse Fuge" in B flat major, op. 133 'Gross Fuge' in B flat major op.134 Great fugue in B flat major op. 133 Great Fugue in B flat major,Op.133 Berceuse in D-flat major, op. 57 Grosse Fuge in B flat Op.133 Grosse Fuge in B flat,Op.133 Prelude in E-flat major, op