Instruct: Classify Amazon reviews into positive or negative sentiment
Query: diverse mix of songs... another classic Radiohead album

Amnesiac is an amazingly diverse mix of great songs. Piano and horns fill the void of electronic sounds found in the two prior albums, from the ethereal piano epic Pyramid Song to the sullen guitar and harmonies in You and Whose Army to the guitar-driven rock hits Knives Out and I Might Be Wrong (a couple favorite Radiohead songs of mine) to the nearly acapella Spinning Plates to the piano and horns in Life in a Glass House.It doesn't quite have the flow of OK Computer or Kid A, but nonetheless another classic Radiohead album that should be in your collection. Again, lots of harmony, piano, and a couple big-hit guitar-driven rock songs... the formula works for me.