Listen to Keyboard Suite in B-Flat Major, BWV 821: V. Echo online. Keyboard Suite in B-Flat Major, BWV 821: V. Echo is an English language song and is sung by Zuzana Ruzickova. Keyboard Suite in B-Flat Major, BWV 821: V. Echo, from the album Bach: The Complete Keyboard Works, was released in the year 2016. The duration of the song is 2:51. Download English songs online from JioSaavn.