草莓救星's '羽毛河' came out on December 31, 2010. 羽毛河 is about six minutes long, preciously at 6:11, making this song fairly long compared to other songs. There is only one song in 羽毛河, so we believe that "羽毛河" is a single. In terms of popularity, 羽毛河 is currently not that popular. Although the tone can be danceable to some, this track does projects more of a negative sound rather than a postive one.

羽毛河 テンポ

The tempo marking of 羽毛河 by 草莓救星 is Andante (at a walking pace), since this song has a tempo of 90 テンポ. With that information, we can conclude that the song has a slow tempo. This song can go great with yoga or pilates. The time signature for this track is 4/4.

羽毛河 キー

C Major is the music key of this track. This also means that this song has a camelot key of 8B. So, the perfect camelot match for 8B would be either 8B or 9A. While, 9B can give you a low energy boost. For moderate energy boost, you would use 5B and a high energy boost can either be 10B or 3B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 8A or 7B will give you a low energy drop, 11B would be a moderate one, and 6B or 1B would be a high energy drop. Lastly, 5A allows you to change the mood.