Traditional Irish folk group Lankum seem to have hit their stride. Formed as an experimental folk-punk duo by brothers Ian and Daragh Lynch in the early 2000s, the band has evolved into a quartet with a repertoire including music-hall ditties, classic ballads, traditional dance tunes and original songs. With Cormac Mac Diarmada and Radie Peat rounding out the roster, the band earned two prominent BBC Radio 2 Folk Awards in 2018: Best Group and Best Original Track for “The Granite Gaze.” The Dubliners dole out heartfelt harmonies and showcase their chops on uilleann pipes, concertina, Russian accordion, fiddle and guitar.