I have shadows on stone(MM)and I am listening to the Galway Piper which is the first part of track 13, The Sligo Polka is the second part of the Track. The sleeve notes say they are TRAD. Also
It was in Australia that Matt learned the first very uncommon Polka - from the late Tim Whelan, a whistle player...from Tipperary. The second he learned from the fidle playing of Tilly Finn from Killavil, co.Sligo
Sorry its not more helpful
Roger