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'
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.
Do you mean what period was Johann Bach in? He was in the Baroque period. 1600 - 1750
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.