入野自由's ' "Happy Day" was released on its scheduled release date, May 8, 2015. With this song being around four minutes long, at 4:23, 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 僕の見つけたもの, so we believe that "Happy Day" is a single. The popularity of Happy Day is currently not that popular right now. The overall mood can be danceable to some, especially with it's high amount of postive energy.

Happy Day テンポ

The tempo marking of Happy Day by 入野自由 is Vivace (lively and fast), since this song has a tempo of 176 テンポ. With that information, we can conclude that the song has a fast tempo. The time signature for this track is 4/4.

Happy Day キー

E♭ Major is the music key of this track. This also means that this song has a camelot key of 5B. So, the perfect camelot match for 5B would be either 5B or 6A. While, 6B can give you a low energy boost. For moderate energy boost, you would use 2B and a high energy boost can either be 7B or 12B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 5A or 4B will give you a low energy drop, 8B would be a moderate one, and 3B or 10B would be a high energy drop. Lastly, 2A allows you to change the mood.