"21!" by Battz was released on March 17, 2023. The duration of 21! is about two minutes long, specifically at 2:21. This song does not appear to have any foul language. 21!'s duration is considered a little bit shorter than the average duration of a typical track. There is only one song in 21!, so we believe that this song is a single. In terms of popularity, 21! is currently unknown. Although the tone can be danceable to some, this track does projects more of a negative sound rather than a postive one.

21! テンポ

The tempo marking of 21! by Battz is Moderato (at a moderate speed), since this song has a tempo of 115 テンポ. With that information, we can conclude that the song has a moderate tempo. This song can go great with walking. The time signature for this track is 4/4.

21! キー

B Major is the music key of this track. This also means that this song has a camelot key of 1B. So, the perfect camelot match for 1B would be either 1B or 2A. While, 2B can give you a low energy boost. For moderate energy boost, you would use 10B and a high energy boost can either be 3B or 8B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 1A or 12B will give you a low energy drop, 4B would be a moderate one, and 11B or 6B would be a high energy drop. Lastly, 10A allows you to change the mood.