Listen to Vivaldi: Violin Concerto in E-Flat Minor "Il Ritiro", RV 256: I. Allegro online. Vivaldi: Violin Concerto in E-Flat Minor "Il Ritiro", RV 256: I. Allegro is an Unknown language song and is sung by Jean-Pierre Wallez and Ensemble instrumental de France. Vivaldi: Violin Concerto in E-Flat Minor "Il Ritiro", RV 256: I. Allegro, from the album Best of Vivaldi, was released in the year 2020. The duration of the song is 3:23. Download Unknown songs online from JioSaavn.