GothHeart made "bday" available on March 20, 2024. For a fairly short song, this song is "bday" is considered an explicit song with a duration of 1:07. Because this song is the only song in bday and no other songs are present in the album, we classify this track as a single. bday is below average in popularity right now. The mood doesn't appear to be that danceable, but it still produces a high amount of positive energy.
The tempo marking of bday by GothHeart is Adagio (slowly with great expression), since this song has a tempo of 69 テンポ. With that information, we can conclude that the song has a slow tempo. The time signature for this track is 4/4.
This song is in the music key of D♭ Major. 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.