Desi, if you had read the thread and followed the links in it before you posted you would have heard Ed singing The Parting Glass, unaccompanied, in a lovely traditional style.
You probably might not then have posted:
"nor does he sing any Irish/Celtic stuff that I know"
which showed your ignorance.

Understand now?

(Can't see any relevance in the size of the instrument he plays- do you believe the bigger the instrument the better the player? smh)