Crystal Lake's '+81' came out on February 15, 2019. +81 is considered explicit and may contain foul language. This song is about 3 minutes and 19 seconds, which is about the average length of a typical song. The track order of this song in Crystal Lake's "Helix" album is number 4 out of 12. In terms of popularity, +81 is currently below average in popularity. Although the tone can be danceable to some, this track does projects more of a negative sound rather than a postive one.

+81 テンポ

We consider the tempo marking of +81 by Crystal Lake to be Andante (at a walking pace) because the track has a tempo of 105 テンポ, a half-time of 52テンポ, and a double-time of 210 テンポ. Based on that, the speed of the song's tempo is slow. The time signature for this track is 4/4.

+81 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.