Estimated from our difficulty score, not taken from an exam syllabus. Checked against 333 works on the ABRSM syllabus: the exact grade is right 7 times out of 10, and within one grade 99 times out of 100.
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.
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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.
Bartók’s Perpetuum mobile presents a relentless, machine-like motion: the surface is driven, often staccato, giving little obvious space for breath and creating a continuous motoric pulse. Technical challenges to focus on include specifically “Passages rapides (2.5/5)”, which requires relaxed fingers and even finger rotation to keep rapid figures uniform, and “Indépendance des mains (2.5/5)”, which calls for maintaining one hand’s steady pulse while the other alters dynamics or articulation — a gesture involving wrist stability and separate attacks for each hand. Stylistically, it belongs among Bartók’s short, highly technical piano pieces and functions as a compact study in agility and rhythmic control within his piano output. I do not provide a reference recording because I am not fully certain of a single widely agreed-upon interpretation for this exact piece.