"Sean McGlynn’s Mazurka" is an Irish mazurka in 3/4 time and D Major. The parts are played AA’BBCCDD. The tune should finish on part A. It was composed by Derry fiddler Eugene O’Donnell for his friend the locally influential New York accordion player Sean McGlynn, originally from Tynagh, Co. Galway. McGlynn was a master of the east Galway style of playing. Before emigrating to the United States, Sean had played with the Leitrim, Killimor and Ballinakill Ceili Bands, all famous traditional dance bands in Ireland at that time. When he emigrated to the United States in 1959 he settled in Boston and was a founding member of the New State Ceilidh's Band. It was recorded by Mick Moloney and Eugene O'Donnell on Uncommon Bonds (1984).