Listen to Symphony No. 7, Op. 77 "Pastoral": I. Allegro moderato online. Symphony No. 7, Op. 77 "Pastoral": I. Allegro moderato is an Instrumental language song and is sung by Gennady Rozhdestvensky, Bolshoi Theatre Orchestra and USSR Ministry of Culture Symphony Orchestra. Symphony No. 7, Op. 77 "Pastoral": I. Allegro moderato, from the album Glazunov: Complete Symphonies, was released in the year 2010. The duration of the song is 8:18. Download Instrumental songs online from JioSaavn.