Mozart's 'Allegro' K.1b is an early, delightful exploration of sonata form, showcasing his nascent compositional genius. Its bright C major key and energetic tempo make it a spirited miniature.
Achieve crisp articulation and a light, agile touch to convey the youthful exuberance.
Allegro (K.1b) is rated Henle level 1 of 9 — beginner repertoire, roughly ABRSM grades 1–2. In the RCM system it corresponds to about level 2.
You should be comfortable at Henle level 1. Learning it one level early is possible as a stretch piece, but more than that usually leads to months of frustration.
A typical performance of Allegro (K.1b) lasts about 1 minute.
Allegro (K.1b) is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.