Meltrisu, 歌愛ユキ's ' "9" was released on its scheduled release date, August 12, 2025. The duration of This song is about two minutes long, specifically at 2:34. This song does not appear to have any foul language. 9's duration is considered a little bit shorter than the average duration of a typical track. There is only one song in 9, so we believe that this song is a single. The popularity of 9 is currently not that popular right now. 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 9 by Meltrisu, 歌愛ユキ is Presto (very, very fast), since this song has a tempo of 180 BPM. With that information, we can conclude that the song has a fast tempo. The time signature for this track is 3/4.
This song is in the music key of A Minor. Because this track belongs in the A Minor key, the camelot key is 8A. So, the perfect camelot match for 8A would be either 8A or 7B. While, a low energy boost can consist of either 8B or 9A. For moderate energy boost, you would use 5A and a high energy boost can either be 10A or 3A. However, if you are looking for a low energy drop, finding a song with a camelot key of 7A would be a great choice. Where 11A would give you a moderate drop, and 6A or 1A would be a high energy drop. Lastly, 11B allows you to change the mood.
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