Neil
Glad to hear Brian has brought that tape out. Must get a copy. I've heard him talk/sing on the subject and it's fascinating.Learned "The Orange Maid of Sligo" from him (which incidentally, is as near as dammit the air used for "Avondale" which Behan also wrote) and, I think, the old versions of Irish Molly from which the tune used for "The Sash" probably came.
Regards