HyunA, Jun Hyung Yong & G.NA made "A Bitter Day" available on July 5, 2011. With this song being around four minutes long, at 3:47, 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. The song is number 4 out of 5 in Bubble Pop! by HyunA. In terms of popularity, A Bitter Day is currently below average in popularity. The overall tone is very danceable, especially with its high energy, which produces more of a euphoric, cheerful, or happy vibe.
The tempo marking of A Bitter Day by HyunA, Jun Hyung Yong & G.NA is Andante (at a walking pace), since this song has a tempo of 96 テンポ. With that information, we can conclude that the song has a slow tempo. The time signature for this track is 3/4.
This song is in the music 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.