Listen to Concerto for Harpsichord and Strings In G Major, RV 780: III. Allegro online. Concerto for Harpsichord and Strings In G Major, RV 780: III. Allegro is an Italian language song and is sung by Anton Nanut and Zagreb Soloists. Concerto for Harpsichord and Strings In G Major, RV 780: III. Allegro, from the album 50 Most Essential Vivaldi, was released in the year 2010. The duration of the song is 2:25. Download Italian songs online from JioSaavn.