虎鷹 made "once again" available on August 27, 2018. With this song being around four minutes long, at 3:39, the duration of this song is pretty average compared to other songs. This track is safe for children and doesn't appear to contain any foul language, since the "Explicit" tag was not present in this track. Since once again only contains only one song in the album, we like to consider this song as a single. In terms of popularity, once again is currently below average in popularity. The overall tone is very danceable, especially with its high energy, which produces more of a euphoric, cheerful, or happy vibe.

once again テンポ

With once again by 虎鷹 having a テンポ of 90 with a half-time of 45 テンポ and a double-time of 180 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. Looking at the テンポ of this song, this song might go great with yoga or pilates. The time signature for this track is 4/4.

once again キー

G Major is the music key of this track. Or for those who are familiar with the camelot wheel, this song has a camelot key of 9B. So, the perfect camelot match for 9B would be either 9B or 10A. While, 10B can give you a low energy boost. For moderate energy boost, you would use 6B and a high energy boost can either be 11B or 4B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 9A or 8B will give you a low energy drop, 12B would be a moderate one, and 7B or 2B would be a high energy drop. Lastly, 6A allows you to change the mood.