Interactive piano piece
Learn Invention No. 7 in E minor
A concise and introspective E minor invention where two voices trade a sighing minor motif over just 23 bars. The interactive practice desk loads the sighing E minor lines with accurate voice separation, lets you loop any phrase at half tempo, and makes the overlapping suspensions audible so you can feel the harmonic yearning before both hands meet.
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Press Play for the full piece, or choose Opening and switch to Wait for note for guided right-hand practice.
About the piece
E minor: the longest sigh in the collection.
Among the fifteen two-part Inventions Bach assembled for the Clavier-Büchlein around 1720, No. 7 in E minor is the most openly expressive. The opening motif is built around a falling half-step — a musical gesture associated in the Baroque tradition with sighing and lamentation — and Bach repeats and develops this idea so persistently that the entire piece takes on an affect of restrained but genuine pathos.
The contrapuntal writing here relies heavily on suspensions: notes that are held from one harmony into the next, creating a brief dissonance that resolves downward with the characteristic Baroque sigh. Both voices use these suspensions throughout, so the piece is in a near-constant state of mild tension resolving into momentary calm and then tensing again. It is a masterclass in how dissonance and resolution can become a structural principle rather than an ornament.
Practice path
Hear every suspension resolve before moving on.
The sighing figures lose their expressiveness if played mechanically. When practicing each hand alone, consciously lean into the suspended note and release the tension only when you hear the resolution — this physical awareness translates directly to a singing tone on the piano. When combining hands, the suspensions in one voice often align with motion in the other; slow practice reveals where these moments occur and how to balance them.
Score basis: Generated MusicXML from Mutopia MIDI. Public domain composition; Public Domain (CC0) — Mutopia; MusicXML generated for Pianodemy. Attribution: Mutopia Project (https://www.mutopiaproject.org/cgibin/piece-info.cgi?id=73).
MIDI source: Mutopia Project (https://www.mutopiaproject.org/cgibin/piece-info.cgi?id=73). Public Domain (CC0) — Mutopia.
Questions
Before you practice.
Short answers for learners and for searchers deciding whether this is the right version to start with.
01Is Bach Invention No. 7 good for beginners?
Yes — its 23-bar length makes it one of the most approachable inventions. The E minor key adds character without requiring complex hand positions, and the two-voice texture stays clear throughout.
02How many bars is BWV 778?
Invention No. 7 in E minor is 23 bars long, making it one of the briefest in Bach's two-part invention collection. A student can learn it end-to-end within a focused week of practice.
How to use this V1
Suspensions need time to breathe.
At 50% tempo, give each suspended note a slight tenuto — a tiny extra weight — before resolving. Loop the opening four measures until the sighing shape is physically internalized. At 75% tempo, the suspensions should still feel deliberate rather than rushed. Wait-for-note is currently off; use the tempo slider to set a pace at which expression is possible.