Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Dolphins on a Merry-Go-Round?

The sound quality is impressive. The dolphins are very active. It doesn't take much imagination to "see" them swimming and spinning playfully in the sea.This is a disc that's sure to put a smile on your face. Children would love listening to this disc at bedtime.The only thing I don't like is the choice of background music. It reminds me of an old carnival carousel. Its murky resonance contrasts with the crystal clarity of the dolphins. It quickly got on my nerves. Luckily I can turn down the volume and allow the dolphin cries drown it out.If background music annoys you, you might want to buy a dolphin disc that isn't enhanced with music.