Listen to Symphony No. 15 in A Major, Op. 141: I. Allegretto online. Symphony No. 15 in A Major, Op. 141: I. Allegretto is an Instrumental language song and is sung by Alexander Sladkovsky, Tatarstan National Symphony Orchestra and Tatarstan National Symphony Orchestra. Symphony No. 15 in A Major, Op. 141: I. Allegretto, from the album Shostakovich: Complete Symphonies, was released in the year 2017. The duration of the song is 9:11. Download Instrumental songs online from JioSaavn.