Instruct: Classify a given review into positive or negative sentiment.
Query: 4 and 1/2 stars.

weird and wonderful stuff in the shiny metal of this disc. it's an electronic spazz-out tempered with lush ambient carpeting for your ears to walk on. at times it feels as if you are inside a musical pinball machine and brain is being used for the pinball. if lewis carroll had dreamed music instead of lunatic books it might have sounded like this. your aural center becomes the rabbitt hole, and it's fun falling down and down. definitely headphone music. doesn't work quite as well being tossed to you from speakers. yes, headphones required. and i recommend it.