Listen to Concerto in C Major for Two Trumpets, RV 537: I. Allegro online. Concerto in C Major for Two Trumpets, RV 537: I. Allegro is an English language song and is sung by Gerd Zapf and Miroslav Kejmar. Concerto in C Major for Two Trumpets, RV 537: I. Allegro, from the album Vivaldi & Albinoni: Concerti, was released in the year 1976. The duration of the song is 3:18. Download English songs online from JioSaavn.