Invention No. 10 in G major
G major - the quickest conversation in the set.
Invention No. 10 in G major has the character of an animated two-way argument: a short, almost throwaway motif is tossed back and forth between the hands so rapidly that the listener can barely tell where one voice ends and the other begins. G major was Bach's most natural key for quick, good-humored writing - the key of the Brandenburg Concertos' most energetic movements - and No. 10 channels that temperament into one of the shortest and most immediately delightful pieces in the Clavier-Büchlein.
The structural challenge is that both voices are equally active throughout, with almost no resting points - the imitation is so tight that the piece functions almost like a single voice divided between two hands rather than two genuinely independent voices. This makes coordination especially demanding: the slightest hesitation in one hand disrupts the other, and the illusion of a single spinning line collapses.
One line, two hands - keep the seam invisible.
Practice the right hand alone at 50% tempo as if playing a complete single-voice melody - do not stop at the rests, simply absorb them as breaths. Repeat the same exercise with the left hand. When combining, aim for a completely even dynamic level in both voices so that the handoff from right to left is inaudible. The goal is a single seamless thread of sound produced by two hands.
Before you practice.
01 Is Bach Invention No. 10 good for late beginners?
Yes. G major requires only one sharp and the two-voice texture stays transparent. The faster tempo is the main hurdle - build it gradually from a slow, even practice speed before pushing the rate.
02 How long is BWV 781 Invention No. 10?
The piece is 32 bars. At its intended lively pace it lasts under a minute, but reaching that tempo cleanly takes patient hands-separate work at slower speeds first.
Match the touch in both hands exactly.
At 50% tempo, record yourself and listen back: any imbalance between the two hands becomes obvious on playback. Use the loop function on the tightest imitative passages - usually the middle section where entries are most compressed - and work at 75% tempo before attempting full speed. Wait-for-note is off; the playback proceeds at your chosen tempo automatically.
