发誓 by 雷震宇 Song Details

雷震宇's ' "发誓" was released on its scheduled release date, May 20, 2025. With this song being around four minutes long, at 4:00, the duration of this song is pretty average compared to other songs. This track is safe for children and doesn't appear to contain any foul language, since the "Explicit" tag was not present in this track. There is only one song in 怎么会不幸福, so we believe that "发誓" is a single. In terms of popularity, 发誓 is currently unknown. Even with the track produces more of a neutral energy, it is pretty danceable compared to others.

BPM and Tempo

The tempo marking of 发誓 by 雷震宇 is Andante (at a walking pace), since this song has a tempo of 104 BPM. With that information, we can conclude that the song has a slow tempo. The time signature for this track is 4/4.

Music Key

C Major is the music key of this track. This also means that this song has a camelot key of 8B. So, the perfect camelot match for 8B would be either 8B or 9A. While, 9B can give you a low energy boost. For moderate energy boost, you would use 5B and a high energy boost can either be 10B or 3B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 8A or 7B will give you a low energy drop, 11B would be a moderate one, and 6B or 1B would be a high energy drop. Lastly, 5A allows you to change the mood.

Want to find the BPM and music key for other songs? Check out our BPM and Key Finder page!