Ovtlier made "Heartless" available on April 21, 2023. With this song being around four minutes long, at 3:35, 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. Because this song is the only song in Heartless and no other songs are present in the album, we classify this track as a single. On top of that, United States appears to be the country where this track was created. Heartless is not that popular right now. Since there is more of a neutral sound being played, this makes the track somewhat danceable.

Heartless テンポ

We consider the tempo marking of Heartless by Ovtlier to be Adagio (slowly with great expression) because the track has a tempo of 75 テンポ, a half-time of 38テンポ, and a double-time of 150 テンポ. Based on that, the speed of the song's tempo is slow. The time signature for this track is 4/4.

Heartless キー

This song has a musical key of G Major. This also means that this song has a camelot key of 9B. So, the perfect camelot match for 9B would be either 9B or 10A. While, 10B can give you a low energy boost. For moderate energy boost, you would use 6B and a high energy boost can either be 11B or 4B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 9A or 8B will give you a low energy drop, 12B would be a moderate one, and 7B or 2B would be a high energy drop. Lastly, 6A allows you to change the mood.