Crack-Line's ' "What U 4" was released on its scheduled release date, December 8, 2025. For a fairly short song, this song is "What U 4" is considered an explicit song with a duration of 1:19. The track order of this song in Crack-Line's "Messiah sounds" album is number 8 out of 14. Based on our statistics, What U 4's popularity is below average in popularity right now. Even with the track produces more of a neutral energy, it is pretty danceable compared to others.
We consider the tempo marking of What U 4 by Crack-Line to be Allegro (fast, quick, and bright) because the track has a tempo of 130 BPM, a half-time of 65BPM, and a double-time of 260 BPM. Based on that, the speed of the song's tempo is fast. Activities such as, walking, can go well with this song. The time signature for this track is 4/4.
F♯ Major is the music key of this track. This also means that this song has a camelot key of 2B. So, the perfect camelot match for 2B would be either 2B or 3A. While, 3B can give you a low energy boost. For moderate energy boost, you would use 11B and a high energy boost can either be 4B or 9B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 2A or 1B will give you a low energy drop, 5B would be a moderate one, and 12B or 7B would be a high energy drop. Lastly, 11A allows you to change the mood.
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