Listen to Piano Sonata No. 6 in D Major, K. 284: III. Thema con variazione online. Piano Sonata No. 6 in D Major, K. 284: III. Thema con variazione is an Instrumental language song and is sung by Maria Yudina. Piano Sonata No. 6 in D Major, K. 284: III. Thema con variazione, from the album Maria Yudina. Grand Collection. Volume 2, was released in the year 2019. The duration of the song is 13:12. Download Instrumental songs online from JioSaavn.