reap, Slevpy808 made "lackin!" available on January 12, 2023. lackin! is 2 minutes and 45 seconds long and may contain bad words that may be unsuitable for children. Because this song is the only song in lackin! and no other songs are present in the album, we classify this track as a single. The popularity of lackin! is currently unknown right now. Since there is more of a neutral sound being played, this makes the track somewhat danceable.

lackin! テンポ

We consider the tempo marking of lackin! by reap, Slevpy808 to be Vivace (lively and fast) because the track has a tempo of 165 テンポ, a half-time of 82テンポ, and a double-time of 330 テンポ. Based on that, the speed of the song's tempo is fast. The time signature for this track is 4/4.

lackin! キー

This song has a musical key of D♭ Major. This also means that 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.