So if one note's changed is it a new tune? I'd be a composure extraordinaire. LoL
Woops! There go another
I'd say that no matter how many notes you change or how many variations you play, if it is recognizable as a particular tune then it is Not a new tune.. However just for fun, one is allowed to take a tune that is recognizable and just give it two or three new Names.. you know, the Old TIme way!!!
Reminds me of the Irish writer I heard on the radio, who told of introducing his American wife to Irish culture: they were at a pub, and a heated political argument was going on at the next table - then a big man jumped up and slammed his glass down on the table, saying, "Well, that's my opinion! And if you don't like it - I'll change it!"