Description
Clavier I, The Well-Tempered, BWV 846-869-48 Fugues and Preludes.
Piano and Harpsichord.
Given that the tuning used up top then dispersed pure and "impure" intervals irregularly throughout the keys, Johann Sebastian Bach's concept of writing a collection of preludes and fugues in all major and minor keys was novel and revolutionary in the second decade of the 18th century. As a result, one could perform extremely well in some keys but completely poorly in others. In his Das Wohltemperirte Clavier (The Well-Tempered Clavier), Bach became the first composer to master all of tonality, thereby delivering a masterpiece of keyboard literature to the musical world.
Beethoven's sonatas represent the New Testament, while the "Well-Tempered Clavier" represents the Old Testament. We have to have faith in both. Bülow, Hans