Originally Posted by MaDalton

someone correct me if i'm wrong, but as far as i remember:

- samples up to 4 bars (measures, tacts - or whatever you call it) you can use without asking and without paying royalties

- cover versions without changing lyrics or music can be done without asking, but royalties must be paid for commercial use

- for samples longer than 4 bars or cover versions with alternate text the publisher must be asked for agreement