The Cornerboys of Halifax Nova Scotia recorded "Rose of Avalon" on their CD "Dukes of Granville Street" (1996). I don't have it but one reviewer says the song is an original by them.

Here's part of the review (at www.geocities.com/SunsetStrip/Alley/5917/) so you'll know if this is what you heard:

Extract:
All of this is by way of introduction to the first CD from the Cornerboys, Halifax's best (yes, I said best!) pub band. The CD was recorded live at the Split Crow (not Halifax's best pub, but not a bad choice - they do serve Tartan on tap, which is a good thing!), and it exudes atmosphere. You can hear the crowd at almost every turn joining in the good time with the band, a four piece outfit that consists of Rob Currie, Carl Poirier, Kit Hunt, and Remy O'Brien. They all sing, but Currie is, as the boys say themselves when introducing each other, the band's 'leader'. He handles the majority of the lead vocals with a strong voice full of emotion and, at the appropriate times, sly and knowing wit. He also bears an uncanny resemblance to the actor who played Margaret's husband in "Margaret's Museum", but that's another story.

All of the traditional instruments are here, including the banjo, tin whistle, mandolin, and bhodran, so fans of Irish and Scottish folk tunes will be plenty pleased. The Cornerboys also take stabs at bluegrass, Neil Diamond (with a super cover of "Sweet Caroline"), country, and Maritime folk, on songs such as "Mother Miramichi" and the Stan Rogers number "Watching the Apples Grow". The high point has to be the one original tune in the bunch, however, Currie's stunningly beautiful "Rose of Avalon", with a mournful tin whistle 'solo' standing out. The only downside to the album is that they don't do their reggae-rap version of "Barrett's Privateers" (you have to hear it to fully appreciate it's twisted genius). Oh well. Maybe next time!

RATING ***1/2 [Best tracks "Mother Miramichi" "Rose of Avalon" "Railroad Work Song"]

contact: Marcel Cloutier @ Talent Source 1541 Barrington Street, Suite 404 Halifax, Nova Scotia
ph:(902) 420-9550 fax: (902) 420-9558

[My bolding]