Princess Ai's '愛永遠' came out on December 27, 2011. With this song being around four minutes long, at 3:55, 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 不只十二月 新歌加精選, so we believe that "愛永遠" is a single. The popularity of 愛永遠 is currently not that popular right now. In our opinion, the overall tone is not very danceable and projects negative sounds, such as being sad, depressed, or angry.

愛永遠 テンポ

The tempo marking of 愛永遠 by Princess Ai is Vivace (lively and fast), since this song has a tempo of 168 テンポ. With that information, we can conclude that the song has a fast tempo. The time signature for this track is 4/4.

愛永遠 キー

This song has a musical key of B♭ Major. This also means that this song has a camelot key of 6B. So, the perfect camelot match for 6B would be either 6B or 7A. While, 7B can give you a low energy boost. For moderate energy boost, you would use 3B and a high energy boost can either be 8B or 1B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 6A or 5B will give you a low energy drop, 9B would be a moderate one, and 4B or 11B would be a high energy drop. Lastly, 3A allows you to change the mood.