PRAYER's 'I know' came out on September 17, 2021. For a fairly short song, this song is "I know" is considered an explicit song with a duration of 1:55. Because this song is the only song in I know and no other songs are present in the album, we classify this track as a single. In terms of popularity, I know is currently below average in popularity. Although the overall vibe is very danceable, it does project more negative sounds.

I know テンポ

We consider the tempo marking of I know by PRAYER to be Moderato (at a moderate speed) because the track has a tempo of 114 テンポ, a half-time of 57テンポ, and a double-time of 228 テンポ. Based on that, the speed of the song's tempo is moderate. The time signature for this track is 4/4.

I know キー

This song has a musical key of D♭ Minor. This also means that this song has a camelot key of 12A. So, the perfect camelot match for 12A would be either 12A or 11B. While, a low energy boost can consist of either 12B or 1A. For moderate energy boost, you would use 9A and a high energy boost can either be 2A or 7A. However, if you are looking for a low energy drop, finding a song with a camelot key of 11A would be a great choice. Where 3A would give you a moderate drop, and 10A or 5A would be a high energy drop. Lastly, 3B allows you to change the mood.