カズシック, SHINYA, Mess→Age Crew's '青葉城恋唄21' had a release date set for February 22, 2006. With this song being around four minutes long, at 4:14, 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 前略、未知の國から, so we believe that "青葉城恋唄21" is a single. 青葉城恋唄21 is 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.
The tempo marking of 青葉城恋唄21 by カズシック, SHINYA, Mess→Age Crew is Adagio (slowly with great expression), since this song has a tempo of 76 BPM. With that information, we can conclude that the song has a slow tempo. The time signature for this track is 4/4.
B Major is the music key of this track. This also means that this song has a camelot key of 1B. So, the perfect camelot match for 1B would be either 1B or 2A. While, 2B can give you a low energy boost. For moderate energy boost, you would use 10B and a high energy boost can either be 3B or 8B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 1A or 12B will give you a low energy drop, 4B would be a moderate one, and 11B or 6B would be a high energy drop. Lastly, 10A allows you to change the mood.
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