I suppose it was a logical things for Metallica to do, given that they've been trying unusual things and taking risks since "Load" - basically doing anything but the usual things expected from a testosterone heavy metal band.This is a great album - not because it tries to get metal-heads to "listen to some real music" or foist some kind of metal-cred on the symphony guys, but because this lot obviously rehearsed and worked out some damn good arrangements that (shock!horror! ) actually enhance the power and weight of some of Metallica's best songs.Very interesting, very good.