Preludes and fugues, Op. 87 Preludes and Fugues, Op.87 3 preludes and fugues, op.36 Preludes and Fugues ⅩⅣⅩⅩⅣ Preludes and fugues BWV 846-857 Preludes and fugues,BWV 846-869 Preludes and Fugues ⅩⅢ-ⅩⅩⅣ Preludes and Fugues1-ⅩⅡ Preludes and Fugues1-ⅩⅢ Preludes and fugues BWV 858-869