L'Arc-en-Ciel made "I'm so happy" available on March 10, 2010. With this song being about 5 minutes long, at 4:41, "I'm so happy" by L'Arc-en-Ciel is fairly a long song compared to the average song length. This song does not have an "Explicit" tag, making it safe for all ages. There are a total of 28 in the song's album "QUADRINITY〜MEMBER'S BEST SELECTIONS〜". In this album, this song's track order is #1. In terms of popularity, I'm so happy is currently below average in popularity. Based on the vibe, this track doesn't seem to be that danceable, however its valence properties can make this some somewhat danceable.

I'm so happy テンポ

With I'm so happy by L'Arc-en-Ciel having a テンポ of 100 with a half-time of 50 テンポ and a double-time of 200 テンポ, we would consider this track to have a Andante (at a walking pace) tempo marking. Because of this, we believe that the song has an overall slow tempo. The time signature for this track is 4/4.

I'm so happy キー

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