Bach's 'The Well-Tempered Clavier' is a seminal collection of preludes and fugues in all 24 major and minor keys, which is a fundamental piece in keyboard repertoire and classical music study, often available in three volumes.
A two-part collection of preludes and fugues, one in each major and minor key, basic to the repertoire of keyboard players today, is J.S. Bach's 'The Well-Tempered Clavier'. Bach compiled this influential work in two volumes, which keyboard players continue to study and perform. It is regarded as one of the most important works in the history of classical music, not only for its complex and beautiful compositions but also for its role in solidifying the well-tempered tuning system which allowed musicians to play in all 24 major and minor keys more harmoniously.
The Well-Tempered Clavier is often offered in three volumes for flexibility and efficiency when it comes to study and performance. Students learning the piano or other keyboard instruments might encounter this work early in their music education, as it aids in understanding the fundamental principles of keyboard technique and music theory. The harmonious blend of notes and chords in these works can be likened to the artist's selection process in creating a beautiful painting from the chaos of colours and shapes present in nature.