X:1 T:Hornpipe  M:C L:1/8 R:Hornpipe C:"A Grand Hornpipe by Michael Buckley Shanahan" N:”Preferable for the Stage. P.D. Reidy, Professor of Dancing.” S:P.D. Reidy music manuscript collection, London, 1890’s (No. 7) N:”Professor” Patrick Reidy of Castleisland was a dancing N:master engaged by the Gaelic League in London to teach N:dance classes. He introduced “Siege of Ennis” and “Walls N:of Limerick” ceili dances and wrote a treatise on dancing. F: http://rarebooks.library.nd.edu/digital/bookreader/MSE_1434-1/#page/1/mode/1up Z:AK/Fiddler’s Companion K:G D2|GFGA BGBd|gfga bgdB|A^GAB cBce|(3a/g/f/ (3g/f/e/ (3d/c/B/ (3c/B/A/| GFGA BGBd|gfga bgdB|Aedc BGAF|G2G2G2:| |:c2|dcde d2 (ef)|gfga bgdB|A^GAB cBce|(3a/g/f/ (3g/f/e/ (3d/c/B/ (3c/B/A/| GFGA BGBd|gfga bgdB|Aedc BGAF|G2G2G2:|]
HORNPIPE . AKA - "Shanahan's Hornpipe." Irish, Hornpipe (whole time). G Major. Standard tuning (fiddle). AABB. The hornpipe is contained in the c. 1890's music manuscript collection  of London dancing master Patrick D. Reidy, originally from Castleisland, County Kerry. Reidy was employed to demonstrate and teach Irish dancing at Gaelic League events in London prior to and after the turn of the 20th century, and is credited with introducing the country dances Walls of Limerick and Siege of Ennis into the repertory. He was a correspondent with Capt. Francis O'Neill in Chicago, and sent him one of his music copybooks in which this melody is entered.
Reidy credits the tune as "a grand hornpipe by Michael Buckley Shanahan", although Reidy's attributions seem to refer to his sources and rather than actual tune composers. Reidy credits Shanahan with a number of tunes contained in his collection. The first strain of "Hornpipe " is cognate with the first strain of a few other hornpipes: see "O'Mealy's," "Hornpipe (9)" from Darly & McCall's Feis Coil collection (1912), and even Seán Ryan's "Lough Key (1) (The)." See also the related “Billy Taylor's Fancy” and “Seán Ryan’s Hornpipe (5).”