Plastic Tree made "瞳孔" available on March 5, 2014. With this song being about 5 minutes long, at 4:34, "瞳孔" by Plastic Tree 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. The song is number 5 out of 7 in echo by Plastic Tree. 瞳孔 is below average in popularity right now. Based on the vibe, this track doesn't seem to be that danceable, however its valence properties can make this some somewhat danceable.

瞳孔 テンポ

The tempo marking of 瞳孔 by Plastic Tree is Andante (at a walking pace), since this song has a tempo of 83 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.

瞳孔 キー

This song has a musical key of G Major. This also means that this song has a camelot key of 9B. So, the perfect camelot match for 9B would be either 9B or 10A. While, 10B can give you a low energy boost. For moderate energy boost, you would use 6B and a high energy boost can either be 11B or 4B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 9A or 8B will give you a low energy drop, 12B would be a moderate one, and 7B or 2B would be a high energy drop. Lastly, 6A allows you to change the mood.