ラストレター by レイニ Song Details

レイニ's ' "ラストレター" was released on its scheduled release date, January 21, 2026. With this song being around four minutes long, at 3:54, 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 9 out of 14 in Act. 0 by レイニ. Going off of the ISRC code of this track, we detected that the origin of this track is from Japan. Based on our statistics, ラストレター's popularity is below average in popularity right now. The overall tone is very danceable, especially with its high energy, which produces more of a euphoric, cheerful, or happy vibe.

BPM and Tempo

The tempo marking of ラストレター by レイニ is Moderato (at a moderate speed), since this song has a tempo of 120 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

B♭ Major is the music key of this track. This also means that this song has a camelot key of 6B. So, the perfect camelot match for 6B would be either 6B or 7A. While, 7B can give you a low energy boost. For moderate energy boost, you would use 3B and a high energy boost can either be 8B or 1B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 6A or 5B will give you a low energy drop, 9B would be a moderate one, and 4B or 11B would be a high energy drop. Lastly, 3A allows you to change the mood.

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