Johann Sebastian Bach (1685-1750) was most famous during his lifetime as a keyboard virtuoso, principally as an organist but also as a harpsichord player, and he composed a significant body of keyboard music. Many of these works (including transcriptions of his organ music) occupy a central place in the repertoire of pianists both amateur and professional, delighting players and listeners alike to this day. The keyboard music that Bach published falls into four anthologies, each titled Clavier