"Maurice Manley's" is an Irish slide in 12/8 time and A dorian. The parts are played AABB.
It comes from the Sliabh Luachra region of the Cork-Kerry border of Ireland.
It is a slide version of "The Ballydesmond Polka (2)".
It is printed in Moylan's Johnny O'Leary of Sliabh Luachra (1994).