Listen to Piano Sonata No. 12 in A-Flat Major, Op. 26: I. Andante con variazioni online. Piano Sonata No. 12 in A-Flat Major, Op. 26: I. Andante con variazioni is an Instrumental language song and is sung by Maria Yudina. Piano Sonata No. 12 in A-Flat Major, Op. 26: I. Andante con variazioni, from the album Maria Yudina. Grand Collection. Volume 2, was released in the year 2019. The duration of the song is 7:11. Download Instrumental songs online from JioSaavn.