https://tickets.metabrainz.org/browse/LB-1044
like this problem is mentioned in this ticket as well
and the proposed solution by the person in the comments also uses regex

but he is taking track name and artist name from the subtitles data
what if a song does not have subtitles on youtube

also, i noticed that it takes subtitles from something like "XYZ artist - topic"

but i noticed that on youtube, many songs are tagged like this
but most of them are not like that
so this approach may also fail even if the song has subtitles