Kuroneko's ' "Butterfly～愛・アイヤー～" was released on its scheduled release date, August 13, 2025. The duration of This song is about 3 minutes long, at 3:06. Based on our data, This song appears to be safe for all ages and is not considered explicit. This track is about the average length of a typical track. Because this song is the only song in Butterfly～愛・アイヤー～ and no other songs are present in the album, we classify this track as a single. Going off of the ISRC code of this track, we detected that the origin of this track is from Japan. The popularity of Butterfly～愛・アイヤー～ is currently below average in popularity right now. The mood doesn't appear to be that danceable, but it still produces a high amount of positive energy.
The tempo marking of Butterfly～愛・アイヤー～ by Kuroneko is Vivace (lively and fast), since this song has a tempo of 160 BPM. With that information, we can conclude that the song has a fast tempo. This song can go great with running. The time signature for this track is 4/4.
This song is in the music key of B Major. This also means that this song has a camelot key of 1B. So, the perfect camelot match for 1B would be either 1B or 2A. While, 2B can give you a low energy boost. For moderate energy boost, you would use 10B and a high energy boost can either be 3B or 8B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 1A or 12B will give you a low energy drop, 4B would be a moderate one, and 11B or 6B would be a high energy drop. Lastly, 10A allows you to change the mood.
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