HEARTZ's ' "끝나지 않은 마음" was released on its scheduled release date, November 27, 2025. 끝나지 않은 마음 is 2 minutes and 44 seconds long and may contain bad words that may be unsuitable for children. There is only one song in 새벽의 진심, so we believe that "끝나지 않은 마음" is a single. In terms of popularity, 끝나지 않은 마음 is currently not that popular. The overall tone is very danceable, especially with its high energy, which produces more of a euphoric, cheerful, or happy vibe.
The tempo marking of 끝나지 않은 마음 by HEARTZ is Andante (at a walking pace), since this song has a tempo of 92 BPM. With that information, we can conclude that the song has a slow tempo. This song can go great with yoga or pilates. The time signature for this track is 4/4.
This song is in the music key of D♭ Major. This also means that this song has a camelot key of 3B. So, the perfect camelot match for 3B would be either 3B or 4A. While, 4B can give you a low energy boost. For moderate energy boost, you would use 12B and a high energy boost can either be 5B or 10B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 3A or 2B will give you a low energy drop, 6B would be a moderate one, and 1B or 8B would be a high energy drop. Lastly, 12A allows you to change the mood.
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