You know, I think John C brings up a good point, although I personally don't agree. From what I have gleaned, English (Scottish, Celtic, Irish ) music seems to be more in the spirit of the Single voice, story telling set to music vein probably descended from Minstrals, bards, troubedours, etc with its origins in the mists of time. A lot of American folk music also falls into this category also. But to say you don't like harmony singing is sort of like saying only a solo instrument, not a string quartet, accompanied music, Symphony, etc.   Seems like there is more tyhan one art form we are discussing here.