"優しい夢" by 神山純一J.Project had its release date on October 30, 2013. This song is about six minutes long, preciously at 6:25, making this song fairly long compared to other songs. There is only one song in 自然治癒力を高める眠りの音楽～セロトニンスリープ～, so we believe that "優しい夢" is a single. 優しい夢 is not that popular 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 優しい夢 by 神山純一J.Project is Lento (slowly), since this song has a tempo of 53 BPM. With that information, we can conclude that the song has a slow tempo. The time signature for this track is 4/4.
D Minor is the music key of this track. Because this track belongs in the D Minor key, the camelot key is 7A. So, the perfect camelot match for 7A would be either 7A or 6B. While, a low energy boost can consist of either 7B or 8A. For moderate energy boost, you would use 4A and a high energy boost can either be 9A or 2A. However, if you are looking for a low energy drop, finding a song with a camelot key of 6A would be a great choice. Where 10A would give you a moderate drop, and 5A or 12A would be a high energy drop. Lastly, 10B allows you to change the mood.
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