MELL made "Proof" available on October 27, 2010. Proof is about six minutes long, preciously at 5:31, making this song fairly long compared to other songs. The track order of this song in MELL's "MIRAGE" album is number 6 out of 12. On top of that, Japan appears to be the country where this track was created. In terms of popularity, Proof is currently unknown. The overall mood can be danceable to some, especially with it's high amount of postive energy.

Proof テンポ

We consider the tempo marking of Proof by MELL to be Andante (at a walking pace) because the track has a tempo of 92 テンポ, a half-time of 46テンポ, and a double-time of 184 テンポ. Based on that, the speed of the song's tempo is slow. Activities such as, yoga or pilates, can go well with this song. The time signature for this track is 4/4.

Proof キー

This song is in the music key of B♭ Major. 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.