Listen to Symphony No. 1, Op. 5 "Slavonic": III. Adagio online. Symphony No. 1, Op. 5 "Slavonic": III. Adagio is an Instrumental language song and is sung by Gennady Rozhdestvensky, Bolshoi Theatre Orchestra and USSR Ministry of Culture Symphony Orchestra. Symphony No. 1, Op. 5 "Slavonic": III. Adagio, from the album Glazunov: Complete Symphonies, was released in the year 2010. The duration of the song is 8:41. Download Instrumental songs online from JioSaavn.