Listen to Concerto for Trumpet, Strings and Harpsichord in B flat major: III. Allegro online. Concerto for Trumpet, Strings and Harpsichord in B flat major: III. Allegro is an English language song and is sung by Czech Philharmonic Orchestra. Concerto for Trumpet, Strings and Harpsichord in B flat major: III. Allegro, from the album Telemann: Concertos, was released in the year 1988. The duration of the song is 2:20. Download English songs online from JioSaavn.