K ONE's '背影' had a release date set for October 19, 2007. With this song being about 5 minutes long, at This song is fairly a long song compared to the average song length. This song does not have an "Explicit" tag, making it safe for all ages. There is only one song in 美好.紀念日-新歌+精選, so we believe that "背影" is a single. Based on our statistics, 背影's popularity 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.

背影 テンポ

The tempo marking of 背影 by K ONE is Allegro (fast, quick, and bright), since this song has a tempo of 135 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.

背影 キー

This song is in the music key of A Major. This also means that this song has a camelot key of 11B. So, the perfect camelot match for 11B would be either 11B or 12A. While, 12B can give you a low energy boost. For moderate energy boost, you would use 8B and a high energy boost can either be 1B or 6B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 11A or 10B will give you a low energy drop, 2B would be a moderate one, and 9B or 4B would be a high energy drop. Lastly, 8A allows you to change the mood.