That's the most difficult question ever on Wilmott. I dug deep into LTM based on those 10 seconds of improvisation. It's a march for sure in a minor key (Phillo was a real Irishman). My educated guess is O'Neill's march(?)
I can ask my 93-year old mum in a few weeks; she knows for sure. The tricky part is Ceolteori Culainn are in a different minor key.
I think you have to speed up Gary's lick and you got it.