Stagger's ' "Heartless" was released on its scheduled release date, August 5, 2019. Heartless is considered explicit and may contain foul language. This song is about 3 minutes and 11 seconds, which is about the average length of a typical song. 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 average in popularity right now. The overall tone is very danceable, especially with its high energy, which produces more of a euphoric, cheerful, or happy vibe.

Heartless テンポ

We consider the tempo marking of Heartless by Stagger 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.

Heartless キー

This song has a musical key of A Minor. Because this track belongs in the A Minor key, the camelot key is 8A. So, the perfect camelot match for 8A would be either 8A or 7B. While, a low energy boost can consist of either 8B or 9A. For moderate energy boost, you would use 5A and a high energy boost can either be 10A or 3A. However, if you are looking for a low energy drop, finding a song with a camelot key of 7A would be a great choice. Where 11A would give you a moderate drop, and 6A or 1A would be a high energy drop. Lastly, 11B allows you to change the mood.