Letter by 伊波杏樹 Song Details

伊波杏樹's ' "Letter" was released on its scheduled release date, August 6, 2025. With this song being about 5 minutes long, at This song is fairly a long song compared to the average song length. This song does not have an "Explicit" tag, making it safe for all ages. The song is number 6 out of 12 in Fiesta by 伊波杏樹. Going off of the ISRC code of this track, we detected that the origin of this track is from Japan. Based on our statistics, Letter's popularity is not that popular right now. The overall mood can be danceable to some, especially with it's high amount of postive energy.

BPM and Tempo

The tempo marking of Letter by 伊波杏樹 is Allegro (fast, quick, and bright), since this song has a tempo of 126 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 3/4.

Music Key

A Major is the music key of this track. This also means that this song has a camelot key of 11B. So, the perfect camelot match for 11B would be either 11B or 12A. While, 12B can give you a low energy boost. For moderate energy boost, you would use 8B and a high energy boost can either be 1B or 6B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 11A or 10B will give you a low energy drop, 2B would be a moderate one, and 9B or 4B would be a high energy drop. Lastly, 8A allows you to change the mood.

Want to find the BPM and music key for other songs? Check out our BPM and Key Finder page!