The tune most frequently used these days for Willie is still the tune assigned in Bronson to Fause Fooodrage. Andy Irvine seems to have created an entire chapter of folklore over this; I was told in Ireland that here was the very bookshop where he dropped a tome and lo! it fell open and a page with the tune fluttered out . . .

Cue Brian Peters to come along and tell us what else you can sing it to.