Carl Philipp Emanuel Bach was particularly fond of the clavichord due to its expressive capabilities. The clavichord allowed for dynamic control and nuanced expression in a way that other keyboard instruments of the time, such as the harpsichord or early pianos, couldn't match. Its intimate sound and the ability to control volume and dynamics by touch appealed to Bach's sensibilities as a performer and composer, enabling him to convey a wide range of emotions through his music. The instrument's responsiveness to the player's touch made it an ideal choice for the subtle and intricate nuances that characterized much of Bach's compositions.