"空" by Relaxing α WAVE was released on April 7, 2023. The duration of 空 is about two minutes long, specifically at 2:03. This song does not appear to have any foul language. 空's duration is considered a little bit shorter than the average duration of a typical track. There is only one song in 睡眠の質を上げる川のせせらぎリラックスミュージック, so we believe that "空" is a single. 空 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.

空 テンポ

The tempo marking of 空 by Relaxing α WAVE is Andante (at a walking pace), since this song has a tempo of 81 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.

空 キー

This song has a musical key of D Major. This also means that this song has a camelot key of 10B. So, the perfect camelot match for 10B would be either 10B or 11A. While, 11B can give you a low energy boost. For moderate energy boost, you would use 7B and a high energy boost can either be 12B or 5B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 10A or 9B will give you a low energy drop, 1B would be a moderate one, and 8B or 3B would be a high energy drop. Lastly, 7A allows you to change the mood.