McAlpines Fusiliers' sheet music and tin whistle notes by The Dubliners and written by Dominic Behan. This version by The Ronnie Drew Group who later became The Dubliners.
Ciaran Burke on tin whistle, Bobby Lynch on guitar along with Ronnie, Barney McKenna on banjo and John Sheehan on the other
whistle. There's an easy to follow video showing how to play the tune on the piano keyboard.
The notes below are the one's I'm playing in the video. They are only slightly
different than the sheet music and are in the same key. It's up to yourself how you want to play it.