Mozart: Piano Sonata No. 16 in C Major ("Facile"), K. 545
Mozart's Piano Sonata No. 16 in C major, K.545, was described by Mozart, himself, as "for beginners", and it is sometimes known by the nickname Sonata facile or Sonata semplice. Since it's publication in 1805 (after Mozart's death), it has become a staple of piano students everywhere. A typical performance takes about 14 minutes.