ONLY1 THEORY's 'Heart Strings' came out on January 28, 2022. Heart Strings is 2 minutes and 52 seconds long and may contain bad words that may be unsuitable for children. Because this song is the only song in Heart Strings and no other songs are present in the album, we classify this track as a single. Heart Strings is below average in popularity right now. Although the overall vibe is very danceable, it does project more negative sounds.

Heart Strings テンポ

We consider the tempo marking of Heart Strings by ONLY1 THEORY to be Andante (at a walking pace) because the track has a tempo of 77 テンポ, a half-time of 38テンポ, and a double-time of 154 テンポ. Based on that, the speed of the song's tempo is slow. The time signature for this track is 4/4.

Heart Strings キー

This song has a musical key of F Major. This also means that this song has a camelot key of 7B. So, the perfect camelot match for 7B would be either 7B or 8A. While, 8B can give you a low energy boost. For moderate energy boost, you would use 4B and a high energy boost can either be 9B or 2B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 7A or 6B will give you a low energy drop, 10B would be a moderate one, and 5B or 12B would be a high energy drop. Lastly, 4A allows you to change the mood.