Listen to Harpsichord Concerto No. 1 in D Major, BWV 972: I. Allegro online. Harpsichord Concerto No. 1 in D Major, BWV 972: I. Allegro is an English language song and is sung by Zuzana Ruzickova. Harpsichord Concerto No. 1 in D Major, BWV 972: I. Allegro, from the album Bach: The Complete Keyboard Works, was released in the year 2016. The duration of the song is 2:43. Download English songs online from JioSaavn.