向蕙玲's ' "不知" was released on its scheduled release date, December 1, 2009. The duration of This song is about 3 minutes long, at 3:18. Based on our data, This song appears to be safe for all ages and is not considered explicit. This track is about the average length of a typical track. There is only one song in 還債, so we believe that "不知" is a single. 不知 is not that popular right now. Since there is more of a neutral sound being played, this makes the track somewhat danceable.

不知 テンポ

The tempo marking of 不知 by 向蕙玲 is Adagio (slowly with great expression), since this song has a tempo of 71 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.

不知 キー

G Minor is the music key of this track. Because this track belongs in the G Minor key, the camelot key is 6A. So, the perfect camelot match for 6A would be either 6A or 5B. While, a low energy boost can consist of either 6B or 7A. For moderate energy boost, you would use 3A and a high energy boost can either be 8A or 1A. However, if you are looking for a low energy drop, finding a song with a camelot key of 5A would be a great choice. Where 9A would give you a moderate drop, and 4A or 11A would be a high energy drop. Lastly, 9B allows you to change the mood.