Mark, those are very interesting questions. I’m not sure there is an answer.
I applaud your enthusiasm for what you heard in Paddy Carty. Melodic variation does add a wonderful dimension to tunes, and opens up a limitless world of fresh interpretations – yes, much more than ornamentation. (Actually, I wonder whether what you are talking about is not melodic variation within a tune, but what I would call a different setting of the tune.) But… not everyone can do melodic variation convincingly. As for ornamentation, yes, less can certainly be more.
It all depends. I think players interpret the tunes the way they feel them, and whether I like what they do is based on what I feel in response to their music. Whether I like someone’s music has little to do with how much ornamentation or melodic variation they do – lots or almost none of either, or both, is fine with me as long as the music says something to me. But if the melodic variations don’t sit well, or sound contrived, or if the ornamentation “gets in the way of the music” as you say, or if the music seems to be all skill and no heart, I tend to tune out very quickly.
You and I were at a concert recently where two top fiddle players – Tommy Peoples and Kevin Burke – provided an interesting demonstration of the possibilities or ornamentation and melodic variation.
There can be few players with more skill at inserting complex ornamentation, and none with greater ability to twist and turn the tune with totally unexpected and compelling melodic variations, than Tommy Peoples. It works in his case, because he’s just a genius. And his music expresses (to me) a complex, sensitive, moody, introverted man, hard to get to know, but with enormous depth of feeling, and utterly brilliant.
Afterwards came Kevin Burke, who uses ornamentation sparingly (comparatively), and does little in the way of melodic variation, other than small (but very effective) changes involving one or two notes in a phrase. On the other hand his playing has tremendous swing, grace and lyricism, and radiates a kind of simple, good-natured happiness that is fun and totally infectious.
It was interesting to note that the audience responded much more strongly to Burke, but then he’s 100 times more communicative on the nonmusical level. My impression is that many did not know what to make of Peoples, and indeed a friend told me that someone had asked him, “What is it with Tommy Peoples? Why do people admire him so much? I don’t get it…” I hope she will get it one day.
Anyway, isn’t it a wonderful thing that in this music you have so much freedom to interpret the tunes to express what you have to say? And isn’t it wonderful that we have both Tommy Peoples and Kevin Burke?
PS Sue – did John Skelton say that about cake and icing? I thought that metaphor was my invention! I guess I should be pleased that a fine player like John sees things the same way I do!