Irish folk is the traditional song and dance-music heritage of Ireland, encompassing narrative ballads, unaccompanied sean-nós singing, and instrumental dance tunes such as reels, jigs, hornpipes, polkas, and slides.
Its sound is defined by modal melodies (often Dorian and Mixolydian), intricate ornamentation (cuts, rolls, triplets, and crans), and acoustic timbres from fiddle, uilleann pipes, tin whistle, wooden flute, harp, concertina/accordion, tenor banjo, bouzouki, guitar (often in DADGAD), and bodhrán. Performances commonly happen in informal “sessions,” where musicians share tune sets and variations, or on stage in folk ensembles.
Lyrically, the tradition ranges from humorous and convivial pub songs to poignant ballads of love, emigration, work, and resistance. The music’s social function—supporting dance, storytelling, and communal singing—remains central to its identity.