Rehab made "#1" available on January 1, 2010. With this song being around four minutes long, at 3:46, 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. This song is part of Welcome Home by Rehab. The song's track number on the album is #1 out of 10 tracks. In terms of popularity, #1 is currently below average in popularity. Even with the track produces more of a neutral energy, it is pretty danceable compared to others.

#1 テンポ

Since #1 by Rehab has a tempo of 90 beats per a minute, the tempo markings of this song would be Andante (at a walking pace). With #1 being at 90 テンポ, the half-time would be 45 テンポ with a double-time of 180 テンポ.In addition, we consider the tempo speed to be pretty slow for this song. This makes this song perfect for activities such as, yoga or pilates. The time signature for this track is 4/4.

#1 キー

This song has a musical key of G Major. Or for those who are familiar with the camelot wheel, 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.