This work investigates the technical and aesthetic adaptation of Johann Sebastian Bach's organ composition for the piano medium. The transcription, prepared by Myra Hess, serves as a pedagogical and performance bridge between the Baroque organ repertoire and the modern piano. It addresses the challenge of maintaining the polyphonic integrity of the original organ score while utilizing the percussive and dynamic capabilities of the piano.

Experts and pianists frequently cite this transcription as a standard reference for intermediate-level study of Bach's keyboard works. The text is highly regarded for its clarity and its faithful adherence to the original organ voicing.