Listen to Flute Concerto No. 1 in G Major, K. 313: I. Allegro maestoso online. Flute Concerto No. 1 in G Major, K. 313: I. Allegro maestoso is an Unknown language song and is sung by Magali Mosnier and Münchener Kammerorchester. Flute Concerto No. 1 in G Major, K. 313: I. Allegro maestoso, from the album Mozart to Relax, was released in the year 2021. The duration of the song is 9:52. Download Unknown songs online from JioSaavn.