@sergeantshroom i have its DVD too and it doesn't have this track. if you have watched the interview with composer Eduard Artemev (it's in the DVD too) , he says that he composed some varies of versions of this music but Tarkovsky loved just one piece of them and dictated to use that piece!
rock on my friend. it needs courage to cover this song. i have no technical knowledge, but i love the emotions within these notes. \m/