zundare made "Kizuna" available on February 2, 2017. With this song being around four minutes long, at 4:05, 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. Because this song is the only song in Kizuna and no other songs are present in the album, we classify this track as a single. Kizuna is below average in popularity right now. Even with the track produces more of a neutral energy, it is pretty danceable compared to others.

Kizuna テンポ

We consider the tempo marking of Kizuna by zundare to be Andante (at a walking pace) because the track has a tempo of 86 テンポ, a half-time of 43テンポ, and a double-time of 172 テンポ. Based on that, the speed of the song's tempo is slow. Activities such as, yoga or pilates, can go well with this song. The time signature for this track is 4/4.

Kizuna キー

The music key of this track is E♭ Major. This also means that this song has a camelot key of 5B. So, the perfect camelot match for 5B would be either 5B or 6A. While, 6B can give you a low energy boost. For moderate energy boost, you would use 2B and a high energy boost can either be 7B or 12B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 5A or 4B will give you a low energy drop, 8B would be a moderate one, and 3B or 10B would be a high energy drop. Lastly, 2A allows you to change the mood.