Faye Wong's '約定' came out on January 1, 2011. With this song being about 5 minutes long, at 4:30, "約定" by Faye Wong 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 極品天碟 聽女聲, so we believe that "約定" is a single. Based on our statistics, 約定's popularity 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.

約定 テンポ

The tempo marking of 約定 by Faye Wong is Vivace (lively and fast), since this song has a tempo of 159 テンポ. With that information, we can conclude that the song has a fast tempo. This song can go great with running. The time signature for this track is 4/4.

約定 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.