Listen to Piano Sonata No. 16 in C Major, K. 545 "Sonata semplice": I. Allegro online. Piano Sonata No. 16 in C Major, K. 545 "Sonata semplice": I. Allegro is an Unknown language song and is sung by Katya Kramer-Lapin. Piano Sonata No. 16 in C Major, K. 545 "Sonata semplice": I. Allegro, from the album Classical Music Treasures, was released in the year 2025. The duration of the song is 3:08. Download Unknown songs online from JioSaavn.