"Heartsore" by Keifer Moon was released on October 21, 2018. Heartsore is 2 minutes and 39 seconds long and may contain bad words that may be unsuitable for children. Because this song is the only song in Heartsore and no other songs are present in the album, we classify this track as a single. Based on our statistics, Heartsore's popularity is not that popular right now. Although the tone can be danceable to some, this track does projects more of a negative sound rather than a postive one.

Heartsore テンポ

We consider the tempo marking of Heartsore by Keifer Moon to be Allegro (fast, quick, and bright) because the track has a tempo of 143 テンポ, a half-time of 72テンポ, and a double-time of 286 テンポ. Based on that, the speed of the song's tempo is fast. Activities such as, jogging or cycling, can go well with this song. The time signature for this track is 4/4.

Heartsore キー

This song is in the music key of B♭ Major. This also means that this song has a camelot key of 6B. So, the perfect camelot match for 6B would be either 6B or 7A. While, 7B can give you a low energy boost. For moderate energy boost, you would use 3B and a high energy boost can either be 8B or 1B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 6A or 5B will give you a low energy drop, 9B would be a moderate one, and 4B or 11B would be a high energy drop. Lastly, 3A allows you to change the mood.