He wrote his two-part inventions and three-part inventions for educational purposes, but also mentioned the purpose of study in his forty-eight preludes and fugues.
The Equitempered Klavier
organs.
The Art of The Fugue. Bach died during the composition of the last fugue of the set.
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E. Bodky has written: 'Interpretation of Bach's Keyboard Works'
A toccata is primarily a keyboard composition, most commonly written for the organ or piano. It can also be arranged for other instruments or ensembles, but the focus is typically on showcasing the virtuosity and expressiveness of the keyboard instrument. Some toccatas may incorporate additional instruments, like strings or winds, in orchestral settings, but the keyboard remains central. Notable examples include works by composers like Bach and Frescobaldi.
Just that ... Johann Sebastian Bach.
he wrote most often for keyboard.
Bach's condition deteriorated very quickly after he went blind, but he first transcribed the chorale "Before the Throne of God I Stand" to his son Christoph. This was Bach's final composition.
Most of J.S. Bach's keyboard music was written for harpsichord or organ. The modern piano hadn't yet been invented during his lifetime.
Harpsichord and pipe organ.
Bach was know for composing Great classical music, such as the six Cello suites, Jesus, Joy of mans desiring...ect.... and many other famous organ music including the great toccata and fugue in D Minor.