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 Instrumental language song and is sung by Eduard Shcherbachev, Kirill Kondrashin and Moscow Philharmonic Symphony Orchestra. Flute Concerto No. 1 in G Major, K. 313: I. Allegro maestoso, from the album Beethoven: Symphony No. 4 - Mozart: Flute Concerto No. 1, was released in the year 2006. The duration of the song is 8:24. Download Instrumental songs online from JioSaavn.