SANNA, KC Rebell's 'Happy Birthday' had a release date set for February 3, 2023. With this song being around four minutes long, at 3:36, 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. Because this song is the only song in Happy Birthday and no other songs are present in the album, we classify this track as a single. On top of that, Germany appears to be the country where this track was created. Happy Birthday is below average in popularity right now. Although the tone can be danceable to some, this track does projects more of a negative sound rather than a postive one.

Happy Birthday テンポ

We consider the tempo marking of Happy Birthday by SANNA, KC Rebell to be Andante (at a walking pace) because the track has a tempo of 86 テンポ, a half-time of 43テンポ, and a double-time of 172 テンポ. Based on that, the speed of the song's tempo is slow. Activities such as, yoga or pilates, can go well with this song. The time signature for this track is 5/4.

Happy Birthday キー

This song has a musical key of C Major. 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.