Lost Promise by Koi no Koe Song Details

Koi no Koe's ' "Lost Promise" was released on its scheduled release date, August 31, 2025. With this song being around four minutes long, at 4:17, 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 are a total of 9 in the song's album "Resonance of Past Memories". In this album, this song's track order is #6. The popularity of Lost Promise is currently not that popular right now. Even with the track produces more of a neutral energy, it is pretty danceable compared to others.

BPM and Tempo

With Lost Promise by Koi no Koe having a BPM of 170 with a half-time of 85 BPM and a double-time of 340 BPM, we would consider this track to have a Vivace (lively and fast) tempo marking. Because of this, we believe that the song has an overall fast tempo. The time signature for this track is 4/4.

Music Key

This song is in the music key of D Major. Or for those who are familiar with the camelot wheel, this song has a camelot key of 10B. So, the perfect camelot match for 10B would be either 10B or 11A. While, 11B can give you a low energy boost. For moderate energy boost, you would use 7B and a high energy boost can either be 12B or 5B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 10A or 9B will give you a low energy drop, 1B would be a moderate one, and 8B or 3B would be a high energy drop. Lastly, 7A allows you to change the mood.

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