Get ready to feel moody with "Bach, JS : Well-Tempered Clavier Book 2 : Prelude No.21 in B flat major BWV890" by Daniel Barenboim. With a 129 BPM and 4 time signature, the rhythms flow in A♯/B♭ major. Spanning 4 minutes and 20 seconds, "Bach, JS : Well-Tempered Clavier Book 2 : Prelude No.21 in B flat major BWV890" radiates low energy from start to finish. Let the moody vibes of this track carry you away.