It's a superb choral piece and brings shivers to my spine.
Now a bit of name dropping.
Sometime ago I sang the bass part, in the original German text, at the Birmingham Symphony Hall with the CBSO and conductor Simon Halsey. One of the most memorable occasions in my life.
A bit of a shame that the piece has been hi-jacked by the leftie Euro mob as their anthem, Alle Menschen werden BrÃ¼der
and all that