"Dwyer's Hornpipe", also known "Corney Drew's Hornpipe", "Fitzgerald's Hornpipe" and "Teresa Halpin's Reel" is an Irish hornpipe in 4/4 time and G Major. The parts are played AA'BB.
It was printed in Joyce's Old Irish Folk Music and Songs (1909). He states:
"This was a great favourite as a dance tune and I learned it in boyhood from pipers and fiddlers".
Joyce was born in 1827 in Glenosheen, Limerick, near the Cork border.
O'Neill prints a variant under the title "Corney Drew's Hornpipe" and another variant can be found as "Teresa Halpin's Reel" in Frank Roche's first collection of traditional Irish music.