404Billy's '€' came out on December 13, 2019. € is 2 minutes and 47 seconds long and may contain bad words that may be unsuitable for children. There are a total of 11 in the song's album "Supernova". In this album, this song's track order is #7. € is below average in popularity right now. Although the overall vibe is very danceable, it does project more negative sounds.

€ テンポ

With € by 404Billy having a テンポ of 76 with a half-time of 38 テンポ and a double-time of 152 テンポ, we would consider this track to have a Adagio (slowly with great expression) tempo marking. Because of this, we believe that the song has an overall slow tempo. The time signature for this track is 4/4.

€ キー

D♭ 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 3B. So, the perfect camelot match for 3B would be either 3B or 4A. While, 4B can give you a low energy boost. For moderate energy boost, you would use 12B and a high energy boost can either be 5B or 10B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 3A or 2B will give you a low energy drop, 6B would be a moderate one, and 1B or 8B would be a high energy drop. Lastly, 12A allows you to change the mood.