ユキ(CV:花澤香菜)'s '「Swallowtail Butterfly ~あいのうた~」from 消滅都市' had a release date set for June 5, 2019. With this song being about 5 minutes long, at This song 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. There are a total of 4 in the song's album "TVアニメ「消滅都市」ユキ(CV:花澤香菜)カバーソングシングル". In this album, this song's track order is #1. 「Swallowtail Butterfly ~あいのうた~」from 消滅都市 is not that popular right now. Although the overall vibe is very danceable, it does project more negative sounds.

「Swallowtail Butterfly ~あいのうた~」from 消滅都市 テンポ

With 「Swallowtail Butterfly ~あいのうた~」from 消滅都市 by ユキ(CV:花澤香菜) having a テンポ of 75 with a half-time of 38 テンポ and a double-time of 150 テンポ, we would consider this track to have a Adagio (slowly with great expression) tempo marking. Because of this, we believe that the song has an overall slow tempo. The time signature for this track is 4/4.

「Swallowtail Butterfly ~あいのうた~」from 消滅都市 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.