Firefly's Lament by Cassia Li Song Details

"Firefly's Lament" by Cassia Li had its release date on November 26, 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. The song is number 4 out of 13 in Concrete Rose by Cassia Li. In terms of popularity, Firefly's Lament is currently not that popular. Although the overall vibe is very danceable, it does project more negative sounds.

BPM and Tempo

The tempo marking of Firefly's Lament by Cassia Li is Moderato (at a moderate speed), since this song has a tempo of 118 BPM. With that information, we can conclude that the song has a moderate tempo. This song can go great with walking. The time signature for this track is 4/4.

Music Key

D Major is the music key of this track. This also means that 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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