理由 by Yaffle Song Details

"理由" by Yaffle had its release date on November 5, 2025. Since This song is still less than 10 minute long, it is still considered a pretty long duration song compared to the average song length. This song does not appear to be explicit due to the lack of the "E" tag. There is only one song in 爆弾 (Music From The Motion Picture), so we believe that "理由" is a single. 理由 is not that popular right now. In our opinion, the overall tone is not very danceable and projects negative sounds, such as being sad, depressed, or angry.

BPM and Tempo

The tempo marking of 理由 by Yaffle is Adagio (slowly with great expression), since this song has a tempo of 71 BPM. With that information, we can conclude that the song has a slow tempo. The time signature for this track is 5/4.

Music Key

The music key of this track is 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.

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