revised and edited by maxwell eckstein (amsco music publishing co). yes, the green, rather thick student book. everyone knows what i am talking about, right? ok, next year i am planning to make a set of cd companion of this book, i.e. record piece by piece in perfect order. title and the design of the cd cover would likely be very similar also (if not the same). now my questions: do i have to ask permission to amsco publishing company? are all these pieces in the public domain? what's the copyright laws that i need to know so no infringements whatsoever would ever occur once the cd's are out in the market. i need good answers on this. pls help. thank you