Ayiko made "Welcome Back!" available on December 1, 2017. The duration of Welcome Back! is about two minutes long, specifically at 2:13. This song does not appear to have any foul language. Welcome Back!'s duration is considered a little bit shorter than the average duration of a typical track. Since Welcome Back! only contains only one song in the album, we like to consider this song as a single. In terms of popularity, Welcome Back! is currently not that popular. Since there is more of a neutral sound being played, this makes the track somewhat danceable.

Welcome Back! テンポ

Since Welcome Back! by Ayiko has a tempo of 95 beats per a minute, the tempo markings of this song would be Andante (at a walking pace). With Welcome Back! being at 95 テンポ, the half-time would be 48 テンポ with a double-time of 190 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.

Welcome Back! キー

D♭ Major is the music key of this track. 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.