This classic Sliabh Luachra tune appears in many recordings. It's one of many tunes named after the blind fiddle teacher Tom Billy Murphy.
Get some info on Tom Billy here: https://rushymountain.com/2016/04/30/tom-billy-murphy/

Myself, Siobhán & Niamh O'Sullivan

Second tune in this selection. Recorded at a practice session before playing at the Handed Down Series in Scartaglin in October 2015.

Denis Murphy & Julia Clifford

from The Star above the Garter. Second tune in selection.

fiddle

banjo version