On December 25, 2020, the song "Who?!" was released by Miss Angel. Who?! is 2 minutes and 10 seconds long and may contain bad words that may be unsuitable for children. Since Who?! only contains only one song in the album, we like to consider this song as a single. In terms of popularity, Who?! is currently below average in popularity. The overall tone is very danceable, especially with its high energy, which produces more of a euphoric, cheerful, or happy vibe.

Who?! テンポ

Since Who?! by Miss Angel has a tempo of 90 beats per a minute, the tempo markings of this song would be Andante (at a walking pace). With Who?! being at 90 テンポ, the half-time would be 45 テンポ with a double-time of 180 テンポ.In addition, we consider the tempo speed to be pretty slow for this song. This makes this song perfect for activities such as, yoga or pilates. The time signature for this track is 4/4.

Who?! キー

This song is in the music key of A♭ Major. Or for those who are familiar with the camelot wheel, this song has a camelot key of 4B. So, the perfect camelot match for 4B would be either 4B or 5A. While, 5B can give you a low energy boost. For moderate energy boost, you would use 1B and a high energy boost can either be 6B or 11B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 4A or 3B will give you a low energy drop, 7B would be a moderate one, and 2B or 9B would be a high energy drop. Lastly, 1A allows you to change the mood.