Instruct: Classify the given Amazon review as either positive or negative.
Query: Terrible quality

The sound quality of this CD is absolutely terrible - all of the tracks have a "muddy" feel to them as though the dynamic range has been completely destroyed.It's a common problem these days - music executives keep blindly "increasing the volume" on discs without any regard to the dynamic range. In effect, the "loud" and "quiet" parts of the song get compressed together into a nasty mess. Another sad victim of the "Loudness war" (look it up).Not recommended unless you want to quickly get a bad headache. Look up the original recordings or find a compilation with better quality standards instead.