Instruct: Classify Amazon reviews into positive or negative sentiment
Query: masterpiece

I've waited 5 years for another album, and finally the wish has been granted and it's been worth it. great escape from the plastic, cookie cutter dime a dozen music acts that infest the charts... i love this album. great mix of acoustic folk rock, head bobbing rock, and don't forget the piano songs. masterful. i think i might be about ready to cast my vote for best album of the year