Recent Rumors made "Heartless" available on January 29, 2021. The duration of Heartless is about 3 minutes long, at 3:13. Based on our data, "Heartless" appears to be safe for all ages and is not considered explicit. This track is about the average length of a typical 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. Based on our statistics, Heartless's popularity is not that popular right now. Even with the track produces more of a neutral energy, it is pretty danceable compared to others.

Heartless テンポ

We consider the tempo marking of Heartless by Recent Rumors to be Allegro (fast, quick, and bright) because the track has a tempo of 140 テンポ, a half-time of 70テンポ, and a double-time of 280 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.

Heartless キー

This song has a musical key of G Minor. Because this track belongs in the G Minor key, the camelot key is 6A. So, the perfect camelot match for 6A would be either 6A or 5B. While, a low energy boost can consist of either 6B or 7A. For moderate energy boost, you would use 3A and a high energy boost can either be 8A or 1A. However, if you are looking for a low energy drop, finding a song with a camelot key of 5A would be a great choice. Where 9A would give you a moderate drop, and 4A or 11A would be a high energy drop. Lastly, 9B allows you to change the mood.