Daniel Barenboim made "Bach, JS : Well-Tempered Clavier Book 1 : Prelude No.21 in B flat major BWV866" available on 2004. With Bach, JS : Well-Tempered Clavier Book 1 : Prelude No.21 in B flat major BWV866 being less than two minutes long, at 1:14, we are fairly confident that this song is not explicit and is safe for all ages. Based on the duration of this song, this song duration is much smaller than the average song duration. The song is number 41 out of 96 in Bach, JS : Well-Tempered Clavier Books 1 & 2 by Daniel Barenboim. Bach, JS : Well-Tempered Clavier Book 1 : Prelude No.21 in B flat major BWV866 is not that popular right now. Based on the vibe, this track doesn't seem to be that danceable, however its valence properties can make this some somewhat danceable.
The tempo marking of Bach, JS : Well-Tempered Clavier Book 1 : Prelude No.21 in B flat major BWV866 by Daniel Barenboim is Andante (at a walking pace), since this song has a tempo of 79 テンポ. With that information, we can conclude that the song has a slow tempo. The time signature for this track is 4/4.
B♭ Major is the music key of this track. This also means that this song has a camelot key of 6B. So, the perfect camelot match for 6B would be either 6B or 7A. While, 7B can give you a low energy boost. For moderate energy boost, you would use 3B and a high energy boost can either be 8B or 1B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 6A or 5B will give you a low energy drop, 9B would be a moderate one, and 4B or 11B would be a high energy drop. Lastly, 3A allows you to change the mood.