"疲労回復" by 宇宙エネルギー was released on April 7, 2020. Since 疲労回復 is still less than 10 minute long, it is still considered a pretty long duration song compared to the average song length. This song does not appear to be explicit due to the lack of the "E" tag. There is only one song in 睡眠導入α波;癒しの周波数・疲労回復・熟睡音楽, so we believe that "疲労回復" is a single. 疲労回復 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 疲労回復 by 宇宙エネルギー is Adagio (slowly with great expression), since this song has a tempo of 76 テンポ. With that information, we can conclude that the song has a slow tempo. The time signature for this track is 4/4.
E♭ Minor is the music key of this track. Because this track belongs in the E♭ Minor key, the camelot key is 2A. So, the perfect camelot match for 2A would be either 2A or 1B. While, a low energy boost can consist of either 2B or 3A. For moderate energy boost, you would use 11A and a high energy boost can either be 4A or 9A. However, if you are looking for a low energy drop, finding a song with a camelot key of 1A would be a great choice. Where 5A would give you a moderate drop, and 12A or 7A would be a high energy drop. Lastly, 5B allows you to change the mood.