Listen to Symphony No. 5 in B-Flat Major, WAB 105: I. Introduktion. Adagio - Allegro (1878 Version) online. Symphony No. 5 in B-Flat Major, WAB 105: I. Introduktion. Adagio - Allegro (1878 Version) is an English language song and is sung by Tapiola Sinfonietta. Symphony No. 5 in B-Flat Major, WAB 105: I. Introduktion. Adagio - Allegro (1878 Version), from the album Bruckner: Symphony No. 5, was released in the year 2014. The duration of the song is 15:55. Download English songs online from JioSaavn.