白雪, 蔡國慶, Jane Zhang, Jason Zhang's '相約世界' came out on February 19, 2019. With this song being around four minutes long, at 3:39, 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 相約世界, so we believe that this song is a single. Based on our statistics, 相約世界's popularity is unknown right now. In our opinion, the overall tone is not very danceable and projects negative sounds, such as being sad, depressed, or angry.

相約世界 テンポ

The tempo marking of 相約世界 by 白雪, 蔡國慶, Jane Zhang, Jason Zhang is Allegro (fast, quick, and bright), since this song has a tempo of 135 テンポ. With that information, we can conclude that the song has a fast tempo. This song can go great with walking. The time signature for this track is 4/4.

相約世界 キー

D♭ Major is the music key of this track. This also means that this song has a camelot key of 3B. So, the perfect camelot match for 3B would be either 3B or 4A. While, 4B can give you a low energy boost. For moderate energy boost, you would use 12B and a high energy boost can either be 5B or 10B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 3A or 2B will give you a low energy drop, 6B would be a moderate one, and 1B or 8B would be a high energy drop. Lastly, 12A allows you to change the mood.