Aoife O'Donovan grew up outside of Boston but spent her summers in Ireland. Even still, she ended up not in a trad music group but in bluegrass outfit Crooked Still and all-female folk-trio Sometymes Why. But O'Donovan is a solo artist, too: Alison Krauss covered her song, "Lay My Burden Down;" other songs have found their way to TV and film. After touring with The Goat Rodeo Sessions (Yo-Yo Ma, Chris Thile, Edgar Meyer and Stuart Duncan), O'Donovan announced her own fall tour in support of this year's release, Fossils. She plays Isis Music Hall on Thursday, Sept. 19. 8:30 p.m. $12/$15. http://isisasheville.com.