陳佩賢Jesslyn made "21" available on December 20, 2023. The duration of 21 is about 3 minutes long, at 3:27. Based on our data, "21" appears to be safe for all ages and is not considered explicit. This track is about the average length of a typical track. The track order of this song in 陳佩賢Jesslyn's "I Am" album is number 1 out of 13. On top of that, Taiwan appears to be the country where this track was created. In terms of popularity, 21 is currently not that popular. Since there is more of a neutral sound being played, this makes the track somewhat danceable.

21 テンポ

We consider the tempo marking of 21 by 陳佩賢Jesslyn to be Andante (at a walking pace) because the track has a tempo of 96 テンポ, a half-time of 48テンポ, and a double-time of 192 テンポ. Based on that, the speed of the song's tempo is slow. The time signature for this track is 4/4.

21 キー

E♭ Major is the music key of this track. This also means that this song has a camelot key of 5B. So, the perfect camelot match for 5B would be either 5B or 6A. While, 6B can give you a low energy boost. For moderate energy boost, you would use 2B and a high energy boost can either be 7B or 12B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 5A or 4B will give you a low energy drop, 8B would be a moderate one, and 3B or 10B would be a high energy drop. Lastly, 2A allows you to change the mood.