Instruct: Classify the given review into positive or negative sentiment.
Query: ouch

aphex twin has made some powerfully stupid music. for example this bottom-of-the-barrel release. half of it sounds like a sit-com "homage" to wagner's ring cycle, even the beats are mostly dull. ventolin is the best thing here (but note that it IS bone-stripping, as someone put it). you'll find nothing even half as cool as bouncing ball (COME TO DADDY) or yellow calx (RICHARD D. JAMES). buyer beware.