Listen to Symphony No. 15 in A Major, Op. 141: IV. Adagio - Allegretto online. Symphony No. 15 in A Major, Op. 141: IV. Adagio - 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: IV. Adagio - Allegretto, from the album Shostakovich: Complete Symphonies, was released in the year 2017. The duration of the song is 16:34. Download Instrumental songs online from JioSaavn.