Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Decent place to begin your Sabbath collection

We Sold our Soul for Rock n Roll covers Sabbath's career up to 1975, so nothing is included from Technical ectasy or Never Say Die, which are two of Sabbath's weaker albums. That aside We Sold our Soul for Rock n Roll is a good first purchase for those curious about Black Sabbath. With the CD version there are 14 songs, if you look hard enough there are cassette versions with 16(Warner Bros)and 17(NEMS)tracks on them.The first two Black Sabbath albums are covered in great detail, and the remainder of the album captures highlights from the other 3 Sabbath albums out at the time. The main problem with the album is that the five albums covered by the complation are the Black sabbath albums that you'll want to own in their entirety.