Listen to Symphony No. 6 in B Minor, Op. 74: I. Adagio - Allegro non troppo online. Symphony No. 6 in B Minor, Op. 74: I. Adagio - Allegro non troppo is an Instrumental language song and is sung by Vladimir Fedoseyev and Grand Symphony Orchestra of All-Union National Radio Service and Central Television Networks. Symphony No. 6 in B Minor, Op. 74: I. Adagio - Allegro non troppo, from the album Tchaikovsky: 6 Symphonies, was released in the year 2020. The duration of the song is 19:07. Download Instrumental songs online from JioSaavn.