Listen to Violin Concerto in G Major, D. 78: I. Allegro online. Violin Concerto in G Major, D. 78: I. Allegro is an English language song and is sung by Federico Guglielmo. Violin Concerto in G Major, D. 78: I. Allegro, from the album Tartini: Violin Concertos Box Set, was released in the year 2015. The duration of the song is 5:54. Download English songs online from JioSaavn.