Kayla made "First Class" available on September 18, 2008. With this song being around four minutes long, at 3:34, 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 are a total of 16 in the song's album "Unbreakable". In this album, this song's track order is #4. The popularity of First Class is currently unknown right now. Even with the track produces more of a neutral energy, it is pretty danceable compared to others.

First Class テンポ

With First Class by Kayla having a テンポ of 160 with a half-time of 80 テンポ and a double-time of 320 テンポ, we would consider this track to have a Vivace (lively and fast) tempo marking. Because of this, we believe that the song has an overall fast tempo. Looking at the テンポ of this song, this song might go great with running. The time signature for this track is 4/4.

First Class キー

This song is in the music key of D♭ Major. Or for those who are familiar with the camelot wheel, 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.