Listen to Haydn: Piano Sonata in C Major, Hob. XVI:35 - Relaxing Piano Music online. Haydn: Piano Sonata in C Major, Hob. XVI:35 - Relaxing Piano Music is an Unknown language song and is sung by Pilates. Haydn: Piano Sonata in C Major, Hob. XVI:35 - Relaxing Piano Music, from the album Pilates - Classical Chillout Lounge Music for Pilates Exercises, was released in the year 2011. The duration of the song is 5:15. Download Unknown songs online from JioSaavn.