This is a video capture of KCTV, a DPRK TV channel. The KCTV logo is on the top left corner of the video. There is an archive of KCTV broadcasts on KCNAWATCH. The archive is public for the past year. You’d have to skim through the fully vods to see if there is more footage.

KCNAWATCH is owned by NKNews, which is funded by NED (National Endowment for Democracy), which is US government funding. So you will see some pro-US propaganda if you leave the archive area but the video archive seems not tampered. It also has a live stream of KCTV. DPRK has issued press statements in the past, saying that NKNews is doing copyright infringement by rehosting media from DPRK.

https://kcnawatch.org/kctv-archive/

DPRK/KCNA published a news article about the Russia Minister of Culture on June 30. There’s 25 photos on the article.

http://kcna.kp/en/article/q/674c05ed022f5b3925c150b4d1305302.kcmsf

This channel has some other full concerts uploaded, so maybe a full version of this would be uploaded later? Or maybe this is just all they recorded, not sure.