LETTER by Byeol Eun Song Details

Byeol Eun's ' "LETTER" was released on its scheduled release date, September 18, 2025. The duration of This song is about two minutes long, specifically at 2:52. This song does not appear to have any foul language. LETTER's duration is considered a little bit shorter than the average duration of a typical track. The song is number 5 out of 5 in A Letter of Romance by Byeol Eun. Based on our statistics, LETTER's popularity is unknown right now. Even with the track produces more of a neutral energy, it is pretty danceable compared to others.

BPM and Tempo

The tempo marking of LETTER by Byeol Eun is Allegro (fast, quick, and bright), since this song has a tempo of 130 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 Minor is the music key of this track. This also means that this song has a camelot key of 10A. So, the perfect camelot match for 10A would be either 10A or 9B. While, a low energy boost can consist of either 10B or 11A. For moderate energy boost, you would use 7A and a high energy boost can either be 12A or 5A. However, if you are looking for a low energy drop, finding a song with a camelot key of 9A would be a great choice. Where 1A would give you a moderate drop, and 8A or 3A would be a high energy drop. Lastly, 1B allows you to change the mood.

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