約束ノ残響 by 原　葉月, Luminous Angels Song Details

原　葉月, Luminous Angels's ' "約束ノ残響" was released on its scheduled release date, November 11, 2025. With this song being around four minutes long, at 4:22, 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 愛ヲ乞ウ夜ノ蝶, so we believe that "約束ノ残響" is a single. Based on our statistics, 約束ノ残響's popularity is unknown right now. Since there is more of a neutral sound being played, this makes the track somewhat danceable.

BPM and Tempo

The tempo marking of 約束ノ残響 by 原　葉月, Luminous Angels is Allegro (fast, quick, and bright), since this song has a tempo of 151 BPM. With that information, we can conclude that the song has a fast tempo. This song can go great with running. The time signature for this track is 4/4.

Music Key

G Major is the music key of this track. This also means that this song has a camelot key of 9B. So, the perfect camelot match for 9B would be either 9B or 10A. While, 10B can give you a low energy boost. For moderate energy boost, you would use 6B and a high energy boost can either be 11B or 4B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 9A or 8B will give you a low energy drop, 12B would be a moderate one, and 7B or 2B would be a high energy drop. Lastly, 6A allows you to change the mood.

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