What people actually want, though, may be determinable by their pronunciation of Celtic.
If they say “seltic,” sell them swirly electronics played on dingdongerators.
Otherwise, sell them something acoustic. It might not matter what.
I met General Rock when he was at Langley, very pleasant fellow. Of course he was just Major Rock back then.
Interestingly, in one of my many tomes on Indian Raagas, there are 26 raagas under the Dorian scale (Kaafee Thaat) which is way way more than raagas under the Phrygian scale (Bhairavi) and the Hijaz-Kar type scale (Bhairav) which latter are the type of scales that westerners tend to associate with the stereotypical East Indian sound.
who carrots?
Should have known this would turnip.
I like to take the easy ones in the morning…
if the OP wants to read…
Celts
Celts (modern)
Celtic languages
Celtic nations
G R O A N
And then there is this:http://www.youtube.com/watch?v=hpfYt7vRHuY
For me, Irish traditional music (and Scottish for that matter),
is to Celtic music as old time American music is to bluegrass.
I never took to using the C-word much myself. So you might
say that Irish and Scottish music are from Ireland and Scotland,
whereas Celtic music is from the mystical, magickal Celtic land.
Well that’s it! I’m off with the fairies! 
I hear I’m annoying when I answer a question with a question. Getting back to the OP, “Why do you want to know?”
you’re a real hero, aint you?
Because I was pretty sure that there was a difference, I just didn’t know for sure what that difference was.
As a matter of fact. 
Did you get your question answered then? That won’t stop people from still answering your question and going on and on for pages and pages.
i suppose the real question is where does Chris De Burgh fit into this rich musical tapistry?
Don’t ya just find that Gauling, I’m sure many here could re-Gael us with stories about Irish vs Celtic music. And let’s not forget the Galician contributions from Galicia, not to be confused with Galicia.
Once on NPR I heard Cajun music characterized as Celtic. Not Celtic-influenced, just Celtic. Because they use fiddles.
And free reeds. I’ve actually heard a few
Irish bands that sound decidedly Cajun
(probably stylistic problems), so I can
see where an untrained DJ might get
confused.
Now that I think of it, I’d like to hear some
Cajun-Irish crossover. Someone get on that.
I like the GermanicCzech Tex-Mex Cajun Celtic music of east Texas and the Texas Hill Country.
Yes, my question has been answered.
More or less. 