方季惟's '悔' came out on September 2, 2002. With this song being around four minutes long, at 4:12, the duration of this song is pretty average compared to other songs. This track is safe for children and doesn't appear to contain any foul language, since the "Explicit" tag was not present in this track. There is only one song in 瑞华33回馈典藏系列 10 方季惟流行篇, so we believe that "悔" is a single. 悔 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.

悔 テンポ

The tempo marking of 悔 by 方季惟 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.

悔 キー

B Minor is the music key of this track. This also means that this song has a camelot key of 10A. So, the perfect camelot match for 10A would be either 10A or 9B. While, a low energy boost can consist of either 10B or 11A. For moderate energy boost, you would use 7A and a high energy boost can either be 12A or 5A. However, if you are looking for a low energy drop, finding a song with a camelot key of 9A would be a great choice. Where 1A would give you a moderate drop, and 8A or 3A would be a high energy drop. Lastly, 1B allows you to change the mood.