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 English language song and is sung by Lithuanian Chamber Orchestra, Saulius Sondeckis and Valentinas Gelgotas. Flute Concerto No. 1 in G Major, K. 313: I. Allegro maestoso, from the album The Greatest Hits: Wolfgang Amadeus Mozart, was released in the year 2015. The duration of the song is 8:48. Download English songs online from JioSaavn.