Rihwa's ' "約束" was released on its scheduled release date, October 3, 2012. This song is about six minutes long, preciously at 5:45, making this song fairly long compared to other songs. There is only one song in 約束, so we believe that "約束" is a single. Based on our statistics, 約束's popularity is not that popular right now. Since there is more of a neutral sound being played, this makes the track somewhat danceable.
The tempo marking of 約束 by Rihwa is Allegro (fast, quick, and bright), since this song has a tempo of 155 BPM. With that information, we can conclude that the song has a fast tempo. This song can go great with running. The time signature for this track is 4/4.
This song has a musical key of F♯ Major. This also means that this song has a camelot key of 2B. So, the perfect camelot match for 2B would be either 2B or 3A. While, 3B can give you a low energy boost. For moderate energy boost, you would use 11B and a high energy boost can either be 4B or 9B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 2A or 1B will give you a low energy drop, 5B would be a moderate one, and 12B or 7B would be a high energy drop. Lastly, 11A allows you to change the mood.
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