Roko Tensei, K4nji's ' "City123" was released on its scheduled release date, March 17, 2021. City123 is 2 minutes and 4 seconds long and may contain bad words that may be unsuitable for children. Because this song is the only song in City123 and no other songs are present in the album, we classify this track as a single. In terms of popularity, City123 is currently below average in popularity. The overall tone is very danceable, especially with its high energy, which produces more of a euphoric, cheerful, or happy vibe.
The tempo marking of City123 by Roko Tensei, K4nji is Moderato (at a moderate speed), since this song has a tempo of 110 テンポ. With that information, we can conclude that the song has a moderate tempo. The time signature for this track is 4/4.
This song has a musical key of D♭ Major. 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.