I found the missing Google hit by looking at their cached copy: one verse from the "May Day Carol" is quoted; it's one of several that Loreena McKinnitt (or however she spells it -I've seen so many versions in the course of searching that I'm now thoroughly confused) put wholesale into her song, which presumably accounts for the title.  The rest of that page is fanciful neo-pagan stuff; therefore a dead end.

Malcolm