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Catalog version 22556; snapshot created 2026-09-30T18:38:17+00:00; source changed 2026-09-30T18:33:14+00:00; snapshot expires 2026-10-01T18:38:17+00:00.

Bach - 20 Short Preludes - No. 8 - Prelude In A Minor - BWV 931

ID 711 · Bach, Johann Sebastian · Piano · Level 5 · Points 15332

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First published: unknown. Completeness: unknown.

“Bach - Prelude In A Minor - BWV 931” is a very short Baroque keyboard prelude with a compact, improvisatory character. The music is written in common time and fits on one page, but it contains many typical Baroque features: broken figures, quick sixteenth-note motion, small imitative gestures between the hands, and a clear final cadence. The right hand often carries the faster melodic figures, while the left hand supports with bass notes, short runs, and simple harmonic motion.Measures 1–2 introduce the main idea of the prelude. The piece begins with a full A minor chord, then quickly moves into short broken-note figures and a small left-hand run. The hands answer each other in brief gestures, creating the feeling of a miniature keyboard improvisation.Measures 3–4 continue the same style with more repeated chord shapes and moving bass notes. The right hand uses short slurred figures and small melodic turns, while the left hand provides stepwise motion underneath. The texture remains light and clear, even when the harmony becomes more active.Measures 5–6 develop the middle of the prelude with more two-note patterns and small changes in register. The hands continue to trade motion, with the right hand shaping the upper line and the left hand filling in the harmony below. Accidentals add extra color and help move the music toward the final phrase.Measures 7–8 bring the piece to its close. The right hand includes a short trill and a longer sixteenth-note figure, while the left hand supports the cadence with a sustained lower note and a final rising motion. The prelude ends firmly in A minor with a compact final chord.Interesting fact: BWV 931 is one of the short keyboard preludes connected with Bach’s teaching tradition. It appears among the small preludes associated with the Klavierbüchlein für Wilhelm Friedemann Bach, a keyboard notebook Bach prepared for his eldest son, and modern sources note that this particular prelude has also been discussed as a work formerly attributed to Johann Sebastian Bach.

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