Rnla, Belfa, Julia Alexa's 'Heartless' came out on August 6, 2021. The duration of Heartless is about two minutes long, specifically at 2:07. This song does not appear to have any foul language. Heartless's duration is considered a little bit shorter than the average duration 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. The popularity of Heartless is currently below average in popularity right now. Although the tone can be danceable to some, this track does projects more of a negative sound rather than a postive one.

Heartless テンポ

We consider the tempo marking of Heartless by Rnla, Belfa, Julia Alexa to be Vivace (lively and fast) because the track has a tempo of 170 テンポ, a half-time of 85テンポ, and a double-time of 340 テンポ. Based on that, the speed of the song's tempo is fast. The time signature for this track is 4/4.

Heartless キー

This song has a musical key of D Minor. Because this track belongs in the D Minor key, the camelot key is 7A. So, the perfect camelot match for 7A would be either 7A or 6B. While, a low energy boost can consist of either 7B or 8A. For moderate energy boost, you would use 4A and a high energy boost can either be 9A or 2A. However, if you are looking for a low energy drop, finding a song with a camelot key of 6A would be a great choice. Where 10A would give you a moderate drop, and 5A or 12A would be a high energy drop. Lastly, 10B allows you to change the mood.