Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Perfection

From the opening track Dancing Queen to the closing Waterloo, this CD is packed full of perfect pop songs. On the surface, the songs can sound quite simple and I think that is why ABBA have often been dismissed by critics. But have a close listen to the melodies, production, multiple layers of voices and instruments, and you'll hear the songs are far more complicated that what they initially seem. (songs like Knowing Me, Knowing You and The Name Of the Game for example). The two female singers Agnetha and Frida have beautiful voices and blend together perfectly. The only problem with this CD is you will want to go out and purchase the rest of the catalogue as I have. You won't be disappointed though.