Dohzi-T, Thelma Aoyama made "約束の日" available on October 8, 2008. 約束の日 is about six minutes long, preciously at 5:39, making this song fairly long compared to other songs. There is only one song in 12Love Stories, so we believe that "約束の日" is a single. 約束の日 is below average in popularity right now. The overall tone is very danceable, especially with its high energy, which produces more of a euphoric, cheerful, or happy vibe.

約束の日 テンポ

The tempo marking of 約束の日 by Dohzi-T, Thelma Aoyama is Andante (at a walking pace), since this song has a tempo of 87 テンポ. With that information, we can conclude that the song has a slow tempo. This song can go great with yoga or pilates. The time signature for this track is 4/4.

約束の日 キー

F Major is the music key of this track. This also means that this song has a camelot key of 7B. So, the perfect camelot match for 7B would be either 7B or 8A. While, 8B can give you a low energy boost. For moderate energy boost, you would use 4B and a high energy boost can either be 9B or 2B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 7A or 6B will give you a low energy drop, 10B would be a moderate one, and 5B or 12B would be a high energy drop. Lastly, 4A allows you to change the mood.