Au5, Fractal's 'Blue' came out on December 1, 2013. Blue is about six minutes long, preciously at 5:34, making this song fairly long compared to other songs. There are a total of 4 in the song's album "Secret Weapon". In this album, this song's track order is #1. The popularity of Blue is currently below average in popularity right now. Although the tone can be danceable to some, this track does projects more of a negative sound rather than a postive one.

Blue テンポ

With Blue by Au5, Fractal having a テンポ of 175 with a half-time of 88 テンポ and a double-time of 350 テンポ, we would consider this track to have a Vivace (lively and fast) tempo marking. Because of this, we believe that the song has an overall fast tempo. The time signature for this track is 4/4.

Blue キー

D♭ Minor is the music key of this track. Or for those who are familiar with the camelot wheel, this song has a camelot key of 12A. So, the perfect camelot match for 12A would be either 12A or 11B. While, a low energy boost can consist of either 12B or 1A. For moderate energy boost, you would use 9A and a high energy boost can either be 2A or 7A. However, if you are looking for a low energy drop, finding a song with a camelot key of 11A would be a great choice. Where 3A would give you a moderate drop, and 10A or 5A would be a high energy drop. Lastly, 3B allows you to change the mood.