My jaw is tentatively on the floor? (Melkor)

[huinare]

If I understand correctly (based upon the really inadequate in-browser translations and my limited grasp of the orthography), a Russian entity at some point in the recent past--or possibly present--made a musical of the Russian fanfic The Black Book of Arda?
Just linking to my tumblr thing for simplicity's sake.

I have been cursing loudly in my intrigued befuddlement for the past hour or so.