Listen to Harpsichord Concerto No. 4 in A Major, BWV 1055: I. Allegro online. Harpsichord Concerto No. 4 in A Major, BWV 1055: I. Allegro is an Instrumental language song and is sung by Einar Steen-Nokleberg, Alexander Loskutov and Chamber Orchestra of the Vologda Philharmonic Society. Harpsichord Concerto No. 4 in A Major, BWV 1055: I. Allegro, from the album Bach, Vivaldi: Concertos, was released in the year 2019. The duration of the song is 4:04. Download Instrumental songs online from JioSaavn.