"there were calm days" by 梶浦 由記 had its release date on February 23, 2022. The duration of This song is about two minutes long, specifically at 2:09. This song does not appear to have any foul language. there were calm days's duration is considered a little bit shorter than the average duration of a typical track. There is only one song in ヴァニタスの手記 Original Soundtrack, so we believe that "there were calm days" is a single. In terms of popularity, there were calm days is currently not that popular. 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 there were calm days by 梶浦 由記 is Andante (at a walking pace), since this song has a tempo of 101 BPM. With that information, we can conclude that the song has a slow tempo. The time signature for this track is 4/4.
F Major is the music key of this track. This also means that this song has a camelot key of 7B. So, the perfect camelot match for 7B would be either 7B or 8A. While, 8B can give you a low energy boost. For moderate energy boost, you would use 4B and a high energy boost can either be 9B or 2B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 7A or 6B will give you a low energy drop, 10B would be a moderate one, and 5B or 12B would be a high energy drop. Lastly, 4A allows you to change the mood.