These recordings are found automatically, and the machine still gets it wrong. One click from you — yes or no — fixes the catalogue for every musician who opens this page after you. Across our 10,000 works, your answer is our only real quality check.
An arrangement or transcription is fine: if you recognise the work, answer yes. Answer no if it is a different work, a different composer, or if the recording does not play.
-
Play — Bach: Invention 9 in F Minor, BWV 780 (Urtext Edition) · Bach Piano Scores (the player loads on click)
Is this the right work? -
Play — Invention No. 9 in F Minor, BWV 780 · Johann Sebastian Bach, András Schiff (the player loads on click)
Is this the right work?
No account is required and no personal data is collected.
Public-domain sheet music on IMSLP ↗
Official level, taken from the exam syllabus.
Difficulty estimate by MusicCoach on a scale of 1 to 100.
Most works cluster between 45 and 65: a small score gap often marks a real step. The highlighted bar shows this work among those for the same instrument.
The MusicCoach difficulty measures a work's overall demands (technique, reading, stamina) on a shared 0-100 scale, consolidated from editorial and pedagogical reference points (Henle, exam syllabuses, curation) and our own analyses. It measures neither musical value nor the practice time YOU will need: two musicians of the same level can experience the same work very differently depending on their strengths (hands used to octaves, quick sight-reading…). The confidence reflects how many reference points sit behind the score and how well they agree — a lightly documented score is flagged “to validate”. For a truly personal bearing, the diagnostic and your space compare each work to YOUR estimated level, which the score alone cannot do.
Does this rating look right to you?
This rating is computed automatically from heterogeneous sources. It gets things wrong, sometimes badly. If you know this work, your answer is worth more than our computation: it tells us which ratings to review.
Each suggestion combines difficulty gap, risk, confidence and skill overlap. The first two cards in each column are the most useful pedagogically.
The safest next step.
A genuine step up, without a jolt.
A useful leap with guided practice.
This F minor invention has a taut, incisive character, with quick exchanges between the two voices that require crisp articulation and careful use of silence to keep the bite. You will primarily face challenges in Hand Independence (4.6/5) and Two-voice Polyphony (4.6/5): you must separate musical planes by bringing out the cantabile line while keeping the other voice accompanimental, and execute staggered attacks and slight rhythmic offsets without blurring the contrapuntal lines. It is a pedagogical Baroque piece in Bach's keyboard inventions, intended to train counterpoint clarity and texture control rather than Romantic expressivity. I do not provide a reference recording here out of caution when I cannot be fully certain of a specific authoritative performance.