weird inside's 'eureka!' came out on October 1, 2021. The duration of eureka! is about two minutes long, specifically at 2:54. This song does not appear to have any foul language. eureka!'s duration is considered a little bit shorter than the average duration of a typical track. Because this song is the only song in eureka! and no other songs are present in the album, we classify this track as a single. In terms of popularity, eureka! is currently below average in popularity. Although the tone can be danceable to some, this track does projects more of a negative sound rather than a postive one.

eureka! テンポ

The tempo marking of eureka! by weird inside is Andante (at a walking pace), since this song has a tempo of 94 テンポ. With that information, we can conclude that the song has a slow tempo. This song can go great with yoga or pilates. The time signature for this track is 4/4.

eureka! キー

The music key of this track is G Minor. Because this track belongs in the G Minor key, the camelot key is 6A. So, the perfect camelot match for 6A would be either 6A or 5B. While, a low energy boost can consist of either 6B or 7A. For moderate energy boost, you would use 3A and a high energy boost can either be 8A or 1A. However, if you are looking for a low energy drop, finding a song with a camelot key of 5A would be a great choice. Where 9A would give you a moderate drop, and 4A or 11A would be a high energy drop. Lastly, 9B allows you to change the mood.