This is a favourite session tune in Ireland, and has been played and recorded by many of the best fiddlers, including Máiréad.
It is a challenging tune on any instrument.
There is a great discussion about this tune on http://www.thesession.org/tunes/display/74
If you use the tabs along the top, there is the sheet music, and "comments" in which musicians swop their notes and methods.
Here is Seán McGuire's version....granted he wasn't as pretty as Máiréad, but he was The Master, and certainly gave
those young musicians a run for their money as they tried to keep up!http://www.youtube.com/watch?v=zn70NAPW4hg
Here is Matt Malloy of the Chieftains, playing it on the flute:http://www.youtube.com/watch?v=mtSjM3YU7Qw&feature=watch_response_rev
Here is Máiréad....the Mason's Apron starts at 2:03:http://www.youtube.com/watch?v=vb6zcYzlWQQ&feature=PlayList&p=73ED62F1B42601E9&playnext_from=PL&playnext=1&index=68