back number made "サイレン" available on December 9, 2015. The duration of サイレン is about 3 minutes long, at 3:21. Based on our data, "サイレン" appears to be safe for all ages and is not considered explicit. This track is about the average length of a typical track. There is only one song in シャンデリア, so we believe that "サイレン" is a single. Based on our statistics, サイレン's popularity is average in popularity right now. Since there is more of a neutral sound being played, this makes the track somewhat danceable.

サイレン テンポ

The tempo marking of サイレン by back number is Allegro (fast, quick, and bright), since this song has a tempo of 137 テンポ. With that information, we can conclude that the song has a fast tempo. This song can go great with walking. The time signature for this track is 4/4.

サイレン キー

E Major is the music key of this track. This also means that this song has a camelot key of 12B. So, the perfect camelot match for 12B would be either 12B or 1A. While, 1B can give you a low energy boost. For moderate energy boost, you would use 9B and a high energy boost can either be 2B or 7B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 12A or 11B will give you a low energy drop, 3B would be a moderate one, and 10B or 5B would be a high energy drop. Lastly, 9A allows you to change the mood.