ALMA's 'Nightmare' came out on May 15, 2020. Nightmare is 2 minutes and 32 seconds long and may contain bad words that may be unsuitable for children. The track order of this song in ALMA's "Have U Seen Her?" album is number 6 out of 12. In terms of popularity, Nightmare is currently not that popular. Although the tone can be danceable to some, this track does projects more of a negative sound rather than a postive one.

Nightmare テンポ

We consider the tempo marking of Nightmare by ALMA 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 5/4.

Nightmare キー

D♭ Major is the music key of this track. This also means that this song has a camelot key of 3B. So, the perfect camelot match for 3B would be either 3B or 4A. While, 4B can give you a low energy boost. For moderate energy boost, you would use 12B and a high energy boost can either be 5B or 10B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 3A or 2B will give you a low energy drop, 6B would be a moderate one, and 1B or 8B would be a high energy drop. Lastly, 12A allows you to change the mood.