T.A., Post Malone made "I know" available on October 16, 2017. With this song being around four minutes long, at 4:07, 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 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 not that popular. Since there is more of a neutral sound being played, this makes the track somewhat danceable.

I know テンポ

We consider the tempo marking of I know by T.A., Post Malone to be Moderato (at a moderate speed) because the track has a tempo of 118 テンポ, a half-time of 59テンポ, and a double-time of 236 テンポ. Based on that, the speed of the song's tempo is moderate. Activities such as, walking, can go well with this song. The time signature for this track is 4/4.

I know キー

This song has a musical key of B Minor. This also means that this song has a camelot key of 10A. So, the perfect camelot match for 10A would be either 10A or 9B. While, a low energy boost can consist of either 10B or 11A. For moderate energy boost, you would use 7A and a high energy boost can either be 12A or 5A. However, if you are looking for a low energy drop, finding a song with a camelot key of 9A would be a great choice. Where 1A would give you a moderate drop, and 8A or 3A would be a high energy drop. Lastly, 1B allows you to change the mood.