Circle by Heartless Song Details

Heartless's ' "Circle" was released on its scheduled release date, December 26, 2025. For a fairly short song, this song is "Circle" is considered an explicit song with a duration of 1:53. Because this song is the only song in Circle and no other songs are present in the album, we classify this track as a single. Based on our statistics, Circle'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.

BPM and Tempo

The tempo marking of Circle by Heartless is Allegro (fast, quick, and bright), since this song has a tempo of 144 BPM. With that information, we can conclude that the song has a fast tempo. This song can go great with jogging or cycling. The time signature for this track is 4/4.

Music Key

This song is in the music key of B♭ Minor. Because this track belongs in the B♭ Minor key, the camelot key is 3A. So, the perfect camelot match for 3A would be either 3A or 2B. While, a low energy boost can consist of either 3B or 4A. For moderate energy boost, you would use 12A and a high energy boost can either be 5A or 10A. However, if you are looking for a low energy drop, finding a song with a camelot key of 2A would be a great choice. Where 6A would give you a moderate drop, and 1A or 8A would be a high energy drop. Lastly, 6B allows you to change the mood.

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