Listen to Flute Concerto No. 1 in G Major, K. 313/285c: I. Allegro maestoso online. Flute Concerto No. 1 in G Major, K. 313/285c: I. Allegro maestoso is an Unknown language song and is sung by Lee Sang Won. Flute Concerto No. 1 in G Major, K. 313/285c: I. Allegro maestoso, from the album 악상 2020, was released in the year 2021. The duration of the song is 7:09. Download Unknown songs online from JioSaavn.