Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great performances, great music. What is with the white noise?

Katchen's playing is mesmerizing, and the music provides an interesting insight into Brahms's development as a composer over the course of his life. My one qualm is the excessive white noise in the background on every track. It really does disrupt my enjoyment of the music. I would look around and see if you can't find another good reading of the piano works without this drawback.