Listen to Flute Concerto No. 1 in G Major, K. 313: II. Adagio - Allegro ma non troppo online. Flute Concerto No. 1 in G Major, K. 313: II. Adagio - Allegro ma non troppo is an English language song and is sung by Opole Philarmonic Orchestra, Silvano Frontalini and Ubaldo Rosso. Flute Concerto No. 1 in G Major, K. 313: II. Adagio - Allegro ma non troppo, from the album Classical Music for Relaxation, was released in the year 2017. The duration of the song is 9:29. Download English songs online from JioSaavn.