On June 9, 2023, the song "Numbrain" was released by Køster. Numbrain is considered explicit and may contain foul language. This song is about 3 minutes and 10 seconds, which is about the average length of a typical song. Because this song is the only song in Numbrain and no other songs are present in the album, we classify this track as a single. In terms of popularity, Numbrain is currently not that popular. The overall mood can be danceable to some, especially with it's high amount of postive energy.

Numbrain テンポ

With Numbrain by Køster having a テンポ of 106 with a half-time of 53 テンポ and a double-time of 212 テンポ, we would consider this track to have a Andante (at a walking pace) tempo marking. Because of this, we believe that the song has an overall slow tempo. The time signature for this track is 4/4.

Numbrain キー

This song is in the music key of A♭ Minor. Because this track belongs in the A♭ Minor key, the camelot key is 1A. So, the perfect camelot match for 1A would be either 1A or 12B. While, a low energy boost can consist of either 1B or 2A. For moderate energy boost, you would use 10A and a high energy boost can either be 3A or 8A. However, if you are looking for a low energy drop, finding a song with a camelot key of 12A would be a great choice. Where 4A would give you a moderate drop, and 11A or 6A would be a high energy drop. Lastly, 4B allows you to change the mood.