I bought the tab book for Black Sabbath - We Sold Our Soul For Rock'N'Roll and it seems that some of the songs are just blatantly wrong. The two in question so far are Children of the Grave and Snowblind. When i play them to the cd it just sounds horribly off. Does anyone have the book and find the same problem. My only thought is that maybe Geezer tunes his bass down for the song and the book doesnt mention that. Let me know if you can.