張琪's '快樂年華' came out on November 24, 1965. The duration of 快樂年華 is about two minutes long, specifically at 2:13. This song does not appear to have any foul language. 快樂年華's duration is considered a little bit shorter than the average duration of a typical track. There is only one song in 樓上樓下, so we believe that "快樂年華" is a single. In terms of popularity, 快樂年華 is currently not that popular. Although the tone can be danceable to some, this track does projects more of a negative sound rather than a postive one.
The tempo marking of 快樂年華 by 張琪 is Moderato (at a moderate speed), since this song has a tempo of 113 BPM. With that information, we can conclude that the song has a moderate tempo. The time signature for this track is 4/4.
B♭ Major is the music key of this track. This also means that this song has a camelot key of 6B. So, the perfect camelot match for 6B would be either 6B or 7A. While, 7B can give you a low energy boost. For moderate energy boost, you would use 3B and a high energy boost can either be 8B or 1B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 6A or 5B will give you a low energy drop, 9B would be a moderate one, and 4B or 11B would be a high energy drop. Lastly, 3A allows you to change the mood.
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