Stephy Tang made "不速之約" available on 2007. The duration of 不速之約 is about 3 minutes long, at 3:12. Based on our data, "不速之約" appears to be safe for all ages and is not considered explicit. This track is about the average length of a typical track. The song is number 8 out of 10 in Dating Stephy by Stephy Tang. Going off of the ISRC code of this track, we detected that the origin of this track is from Hong Kong. Based on our statistics, 不速之約's popularity is below average in popularity right now. Even with the track produces more of a neutral energy, it is pretty danceable compared to others.

不速之約 テンポ

The tempo marking of 不速之約 by Stephy Tang is Allegro (fast, quick, and bright), since this song has a tempo of 134 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.

不速之約 キー

This song has a musical key of F♯ Major. This also means that this song has a camelot key of 2B. So, the perfect camelot match for 2B would be either 2B or 3A. While, 3B can give you a low energy boost. For moderate energy boost, you would use 11B and a high energy boost can either be 4B or 9B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 2A or 1B will give you a low energy drop, 5B would be a moderate one, and 12B or 7B would be a high energy drop. Lastly, 11A allows you to change the mood.