RJay, KD's ' "Hartklop" was released on its scheduled release date, February 1, 2021. With this song being around four minutes long, at 4:00, 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 Hartklop and no other songs are present in the album, we classify this track as a single. Based on our statistics, Hartklop's popularity is not that popular right now. The overall tone is very danceable, especially with its high energy, which produces more of a euphoric, cheerful, or happy vibe.

Hartklop テンポ

We consider the tempo marking of Hartklop by RJay, KD to be Allegro (fast, quick, and bright) because the track has a tempo of 124 テンポ, a half-time of 62テンポ, and a double-time of 248 テンポ. Based on that, the speed of the song's tempo is fast. Activities such as, walking, can go well with this song. The time signature for this track is 4/4.

Hartklop キー

This song has a musical key of A♭ Major. This also means that this song has a camelot key of 4B. So, the perfect camelot match for 4B would be either 4B or 5A. While, 5B can give you a low energy boost. For moderate energy boost, you would use 1B and a high energy boost can either be 6B or 11B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 4A or 3B will give you a low energy drop, 7B would be a moderate one, and 2B or 9B would be a high energy drop. Lastly, 1A allows you to change the mood.