Know ART, B-L1FE made "Black Flag" available on September 7, 2019. Black Flag is explicit and may not be suitable for children. With the duration being about 4:11, this song is close to the average duration of a typical track. Because this song is the only song in Black Flag and no other songs are present in the album, we classify this track as a single. In terms of popularity, Black Flag is currently below average in popularity. Even with the track produces more of a neutral energy, it is pretty danceable compared to others.

Black Flag テンポ

The tempo marking of Black Flag by Know ART, B-L1FE is Moderato (at a moderate speed), since this song has a tempo of 110 テンポ. With that information, we can conclude that the song has a moderate tempo. The time signature for this track is 4/4.

Black Flag キー

This song is in the music key of C Major. This also means that this song has a camelot key of 8B. So, the perfect camelot match for 8B would be either 8B or 9A. While, 9B can give you a low energy boost. For moderate energy boost, you would use 5B and a high energy boost can either be 10B or 3B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 8A or 7B will give you a low energy drop, 11B would be a moderate one, and 6B or 1B would be a high energy drop. Lastly, 5A allows you to change the mood.