If "Singing Men of Ulster" is still available it's worth getting, though Liam Andrews - despite his singing "The Bold Orange Heroes of Comber" - was not a protestant. There are performances of songs by Packie Byrne, Kitty Gallagher, Robert Cinnamond, Johnny Doherty (yes, that one) Sarah Makem, Paddy Tunney, a marvel called Frank Donnelly and Colm and Cathal O'Boyle. Recorded in the period 56-62 by Diane Hamilton and Sean O Boyle.

If Green Linnet has none, Ulstersongs had to buy ten some while back, in order to get any and there are about three left. The price rises as soon as they become relics of a previous millennium. (Like myself)