That string looks like a specific file name or folder title typically found on file-sharing sites, torrent trackers, or digital archives.
This is the crux of your keyword. What does “2012 J work” mean in the context of Opeth? opethdiscography19952011flacvinyl2012j work
Conclusion
Blackwater Park (2001): Often cited as their magnum opus, produced by Steven Wilson. That string looks like a specific file name