"約束 ~eternal promise~" by Yui Horie had its release date on December 21, 2000. 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 水たまりに映るセカイ, so we believe that "約束 ~eternal promise~" is a single. 約束 ~eternal promise~ is not that popular right now. Although the tone can be danceable to some, this track does projects more of a negative sound rather than a postive one.

約束 ~eternal promise~ テンポ

The tempo marking of 約束 ~eternal promise~ by Yui Horie is Adagio (slowly with great expression), since this song has a tempo of 76 テンポ. With that information, we can conclude that the song has a slow tempo. The time signature for this track is 4/4.

約束 ~eternal promise~ キー

The music key of this track is F Major. This also means that this song has a camelot key of 7B. So, the perfect camelot match for 7B would be either 7B or 8A. While, 8B can give you a low energy boost. For moderate energy boost, you would use 4B and a high energy boost can either be 9B or 2B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 7A or 6B will give you a low energy drop, 10B would be a moderate one, and 5B or 12B would be a high energy drop. Lastly, 4A allows you to change the mood.