Instruct: Classify a review into positive or negative sentiment.
Query: One of the very few true rock applications to classic genres

'Ceremony, An Electronic Mass' may be one of the very few classic Rock works where the rock idiom in its (relatively) pure form is applied to a classical genre, the Mass. There are some well-meaning but weak attempts, as with the Electric Prunes attempt which simply does classical phrasings with rock instruments. I hope to do a much more thorough review of this work soon, but I'm moved to put in my two cents quickly, as I misstated the title of this album in my review of 'Tommy', one of the other very few genuine translations of classic genre into the rock idiom.I would say this about few albums, but this work demands your attention simply because of its great ambitions to accomplish a difficult task. Even if you don't believe the composers succeeded (I think they did) it is important to listen to and be aware of this important signpost in the history of Rock.