Copyright is and can be a sore subject. Not only as an aspiring lyricist but as a writer, I feel compelled to note if I borrow a tune for a parody and credit the original writer. In the end, you have to look the person in the mirror in the eye and I wouldn't be able to if I didn't credit another for their work. Anything less is theft, albiet it may be "minor" theft but why split hairs. If I write the lyrics they are mine. If they are traditional Hell acknoledge that most prolific author Unknown. Just my two cents. Copyrights are only good for certain time. best reguards, Neil