"Empty heart" by 加藤 達也 had its release date on March 26, 2025. The duration of This song is about two minutes long, specifically at 2:14. This song does not appear to have any foul language. Empty heart's duration is considered a little bit shorter than the average duration of a typical track. There is only one song in 魔王2099 オリジナルサウンドトラックvol.2, so we believe that "Empty heart" is a single. In terms of popularity, Empty heart 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.
The tempo marking of Empty heart by 加藤 達也 is Moderato (at a moderate speed), since this song has a tempo of 111 BPM. With that information, we can conclude that the song has a moderate tempo. The time signature for this track is 5/4.
B♭ Minor is the music key of this track. 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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