AP made "Intro" available on July 3, 2020. Intro is 2 minutes and 31 seconds long and may contain bad words that may be unsuitable for children. Because this song is the only song in Intro and no other songs are present in the album, we classify this track as a single. In terms of popularity, Intro is currently below average in popularity. Even with the track produces more of a neutral energy, it is pretty danceable compared to others.

Intro テンポ

We consider the tempo marking of Intro by AP to be Andante (at a walking pace) because the track has a tempo of 100 テンポ, a half-time of 50テンポ, and a double-time of 200 テンポ. Based on that, the speed of the song's tempo is slow. The time signature for this track is 4/4.

Intro キー

G Major is the music key of this track. This also means that this song has a camelot key of 9B. So, the perfect camelot match for 9B would be either 9B or 10A. While, 10B can give you a low energy boost. For moderate energy boost, you would use 6B and a high energy boost can either be 11B or 4B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 9A or 8B will give you a low energy drop, 12B would be a moderate one, and 7B or 2B would be a high energy drop. Lastly, 6A allows you to change the mood.