Thomas Kuehn, Phantasia Music's 'Once' came out on June 16, 2023. The duration of Once is about two minutes long, specifically at 2:26. This song does not appear to have any foul language. Once's duration is considered a little bit shorter than the average duration of a typical track. Since Once only contains only one song in the album, we like to consider this song as a single. Once is not that popular right now. Although the tone can be danceable to some, this track does projects more of a negative sound rather than a postive one.

Once テンポ

With Once by Thomas Kuehn, Phantasia Music having a テンポ of 79 with a half-time of 40 テンポ and a double-time of 158 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 3/4.

Once キー

This song has a musical key of A♭ Major. Or for those who are familiar with the camelot wheel, this song has a camelot key of 4B. So, the perfect camelot match for 4B would be either 4B or 5A. While, 5B can give you a low energy boost. For moderate energy boost, you would use 1B and a high energy boost can either be 6B or 11B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 4A or 3B will give you a low energy drop, 7B would be a moderate one, and 2B or 9B would be a high energy drop. Lastly, 1A allows you to change the mood.