aru's 'blue_2' came out on November 8, 2017. The duration of blue_2 is about two minutes long, specifically at 2:52. This song does not appear to have any foul language. blue_2's duration is considered a little bit shorter than the average duration of a typical track. There are a total of 4 in the song's album "Origin 原点". In this album, this song's track order is #3. blue_2 is 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_2 テンポ

With blue_2 by aru having a テンポ of 78 with a half-time of 39 テンポ and a double-time of 156 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 4/4.

blue_2 キー

A♭ Minor is the music key of this track. Which also means that the camelot key for this song is 1A. So, the perfect camelot match for 1A would be either 1A or 12B. While, a low energy boost can consist of either 1B or 2A. For moderate energy boost, you would use 10A and a high energy boost can either be 3A or 8A. However, if you are looking for a low energy drop, finding a song with a camelot key of 12A would be a great choice. Where 4A would give you a moderate drop, and 11A or 6A would be a high energy drop. Lastly, 4B allows you to change the mood.