Listen to Violin Concerto in A Major, RV 345: I. Allegro online. Violin Concerto in A Major, RV 345: I. Allegro is an English language song and is sung by János Rolla, John Williams and Franz Liszt Chamber Orchestra. Violin Concerto in A Major, RV 345: I. Allegro, from the album John Williams Plays Vivaldi Concertos, was released in the year 2015. The duration of the song is 4:00. Download English songs online from JioSaavn.