Joe
Sounds great! A couple of comments:
- that was probably another song about Tom Crean, as you suspected. There was one written by a fellow Corkman (I think!) of Crowley's, whose name won't come to me.... Ger Wolfe? Probably that one.

- I think the tunes for Carrigdhoun and Mountains of Mourne both derive from "The Bendemeer Stream"

Regards