BT4 by ELFER Song Details

ELFER's ' "BT4" was released on its scheduled release date, October 20, 2025. The duration of This song is about two minutes long, specifically at 2:19. This song does not appear to have any foul language. BT4's duration is considered a little bit shorter than the average duration of a typical track. Because this song is the only song in BT4 and no other songs are present in the album, we classify this track as a single. In terms of popularity, BT4 is currently below average in popularity. 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 BT4 by ELFER is Andante (at a walking pace), since this song has a tempo of 100 BPM. With that information, we can conclude that the song has a slow tempo. The time signature for this track is 4/4.

Music Key

F♯ Minor is the music key of this track. This also means that this song has a camelot key of 11A. So, the perfect camelot match for 11A would be either 11A or 10B. While, a low energy boost can consist of either 11B or 12A. For moderate energy boost, you would use 8A and a high energy boost can either be 1A or 6A. However, if you are looking for a low energy drop, finding a song with a camelot key of 10A would be a great choice. Where 2A would give you a moderate drop, and 9A or 4A would be a high energy drop. Lastly, 2B allows you to change the mood.

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