自然捲's '明信片' came out on 2004. 明信片 is about six minutes long, preciously at 5:39, making this song fairly long compared to other songs. There is only one song in 自然捲精選輯, so we believe that "明信片" is a single. 明信片 is not that popular right now. Although the tone can be danceable to some, this track does projects more of a negative sound rather than a postive one.

明信片 テンポ

The tempo marking of 明信片 by 自然捲 is Andante (at a walking pace), since this song has a tempo of 82 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.

明信片 キー

C Major is the music key of this track. This also means that this song has a camelot key of 8B. So, the perfect camelot match for 8B would be either 8B or 9A. While, 9B can give you a low energy boost. For moderate energy boost, you would use 5B and a high energy boost can either be 10B or 3B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 8A or 7B will give you a low energy drop, 11B would be a moderate one, and 6B or 1B would be a high energy drop. Lastly, 5A allows you to change the mood.