未署名的情书 by 阿讯 Song Details

阿讯's ' "未署名的情书" was released on its scheduled release date, December 27, 2025. With this song being around four minutes long, at 3:38, 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 有风无风皆自由, so we believe that "未署名的情书" is a single. Based on our statistics, 未署名的情书's popularity is unknown right now. Even with the track produces more of a neutral energy, it is pretty danceable compared to others.

BPM and Tempo

The tempo marking of 未署名的情书 by 阿讯 is Allegro (fast, quick, and bright), since this song has a tempo of 128 BPM. With that information, we can conclude that the song has a fast tempo. This song can go great with walking. 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.

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