JÄST's 'Heartlight' came out on April 5, 2024. With this song being around four minutes long, at 3:39, 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 Heartlight and no other songs are present in the album, we classify this track as a single. On top of that, France appears to be the country where this track was created. In terms of popularity, Heartlight is currently not that popular. Although the tone can be danceable to some, this track does projects more of a negative sound rather than a postive one.

Heartlight テンポ

We consider the tempo marking of Heartlight by JÄST to be Moderato (at a moderate speed) because the track has a tempo of 116 テンポ, a half-time of 58テンポ, and a double-time of 232 テンポ. Based on that, the speed of the song's tempo is moderate. Activities such as, walking, can go well with this song. The time signature for this track is 4/4.

Heartlight キー

This song is in the music key of A Major. This also means that this song has a camelot key of 11B. So, the perfect camelot match for 11B would be either 11B or 12A. While, 12B can give you a low energy boost. For moderate energy boost, you would use 8B and a high energy boost can either be 1B or 6B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 11A or 10B will give you a low energy drop, 2B would be a moderate one, and 9B or 4B would be a high energy drop. Lastly, 8A allows you to change the mood.