やじぃ, かむあそうトライブス made "せかいいち" available on January 20, 2011. Since せかいいち 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 のけもののけものとたわけもの, so we believe that "せかいいち" is a single. The popularity of せかいいち is currently not that popular right now. The overall mood can be danceable to some, especially with it's high amount of postive energy.
The tempo marking of せかいいち by やじぃ, かむあそうトライブス is Vivace (lively and fast), since this song has a tempo of 175 テンポ. With that information, we can conclude that the song has a fast 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.