John Ryan’s

Among the most commonly played polkas at sessions, this D-major tune carries a tangle of titles — Sean Ryan's, the Armagh, the Keadue. Planxty established its now-standard pairing with Denis Murphy's Polka on "Cold Blow and the Rainy Night" (1974), and Gaelic Storm later carried it to a far wider audience in the steerage dance scene of the film Titanic.