Theory of Happiness by FTISLAND Song Details

FTISLAND's ' "Theory of Happiness" was released on its scheduled release date, May 5, 2025. With this song being around four minutes long, at 4:06, 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. Since Theory of Happiness only contains only one song in the album, we like to consider this song as a single. Furthermore, we believe that the track originated from South Korea. In terms of popularity, Theory of Happiness is currently average in popularity. Since there is more of a neutral sound being played, this makes the track somewhat danceable.

BPM and Tempo

With Theory of Happiness by FTISLAND having a BPM of 90 with a half-time of 45 BPM and a double-time of 180 BPM, we would consider this track to have a Andante (at a walking pace) tempo marking. Because of this, we believe that the song has an overall slow tempo. Looking at the BPM of this song, this song might go great with yoga or pilates. The time signature for this track is 4/4.

Music Key

F♯ Major is the music key of this track. Or for those who are familiar with the camelot wheel, this song has a camelot key of 2B. So, the perfect camelot match for 2B would be either 2B or 3A. While, 3B can give you a low energy boost. For moderate energy boost, you would use 11B and a high energy boost can either be 4B or 9B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 2A or 1B will give you a low energy drop, 5B would be a moderate one, and 12B or 7B would be a high energy drop. Lastly, 11A allows you to change the mood.

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