Ivory Rasmus, TWINWOLVES's 'f.u.' came out on January 30, 2023. The duration of f.u. is about two minutes long, specifically at 2:14. This song does not appear to have any foul language. f.u.'s duration is considered a little bit shorter than the average duration of a typical track. Because this song is the only song in f.u. and no other songs are present in the album, we classify this track as a single. f.u. is not that popular right now. Although the tone can be danceable to some, this track does projects more of a negative sound rather than a postive one.

f.u. テンポ

The tempo marking of f.u. by Ivory Rasmus, TWINWOLVES is Andante (at a walking pace), since this song has a tempo of 78 テンポ. With that information, we can conclude that the song has a slow tempo. The time signature for this track is 4/4.

f.u. キー

This song is in the music key of B♭ Major. This also means that this song has a camelot key of 6B. So, the perfect camelot match for 6B would be either 6B or 7A. While, 7B can give you a low energy boost. For moderate energy boost, you would use 3B and a high energy boost can either be 8B or 1B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 6A or 5B will give you a low energy drop, 9B would be a moderate one, and 4B or 11B would be a high energy drop. Lastly, 3A allows you to change the mood.