Cirrustraditionmusic posted this video, an extract of TG4's "Lorg Lunny". On this video you have a good look at what Donal is playing. Really interesting.
"Dónal and Mike play Farewell to Whalley Range a slipjig that Mike composed. In this scene Mike is recommending the slip jig for inclusion in a set of tunes that Ciorras will play.
Ciorras are the band that were formed as a result of the tv series that this clip comes from; TG4's 'Lorg Lunny'"