"Shoujo Rei" by Yuuna Nini, Synthion was released on April 30, 2022. With this song being about 5 minutes long, at 4:45, "Shoujo Rei" by Yuuna Nini, Synthion 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. Since Shoujo Rei only contains only one song in the album, we like to consider this song as a single. Shoujo Rei is average in popularity right now. In our opinion, the overall tone is not very danceable and projects negative sounds, such as being sad, depressed, or angry.

Shoujo Rei テンポ

With Shoujo Rei by Yuuna Nini, Synthion having a テンポ of 80 with a half-time of 40 テンポ and a double-time of 160 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.

Shoujo Rei キー

The music key of this track is E Major. Or for those who are familiar with the camelot wheel, this song has a camelot key of 12B. So, the perfect camelot match for 12B would be either 12B or 1A. While, 1B can give you a low energy boost. For moderate energy boost, you would use 9B and a high energy boost can either be 2B or 7B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 12A or 11B will give you a low energy drop, 3B would be a moderate one, and 10B or 5B would be a high energy drop. Lastly, 9A allows you to change the mood.