JoeI haven't even listened to the sample - just chased up the link in a quiet moment in class!
I agree its a fine air. I'm not normally keen on setting well known poems to music - but this one works very well. I've been known to sing it myself. I love Phil's version of it - preferably when he does it unaccompanied, mind you. As far as I know, the air is Loreeena McKennits alright.
Regards