Sonata in C, K. 545: I. Allegro

Mozart listed it as 'a little piano sonata for beginners'; it is known as the Sonata facile. A model sonata form, with one surprise: the return of the first theme comes in F major, not C. Its scales and broken chords must be perfectly even; practise them slowly with a metronome.

Source: Mutopia Project no. 998, typeset by Alejandro Sierra (CC BY-SA 3.0).