ハルカミライ's '心' had a release date set for January 16, 2019. The duration of This song is about two minutes long, specifically at 2:59. This song does not appear to have any foul language. 心's duration is considered a little bit shorter than the average duration of a typical track. There is only one song in 永遠の花, so we believe that "心" is a single. The popularity of 心 is currently below average in popularity right now. In our opinion, the overall tone is not very danceable and projects negative sounds, such as being sad, depressed, or angry.
The tempo marking of 心 by ハルカミライ is Presto (very, very fast), since this song has a tempo of 194 BPM. With that information, we can conclude that the song has a fast tempo. The time signature for this track is 4/4.
A Major is the music key of this track. 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.
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