Sarah Jarosz (juh-ROSE) is a bluegrass artist and a great deal more. She plays enough instruments to be called a one-woman string band: mandolin, clawhammer banjo, and guitar, for starters. She sings in supple tones that blur the folk-pop boundary, and she writes songs that range from dead ringers for old-time ballads to lyrically rich singer-songwriter reflections. Raised near Austin, Sarah signed with the Sugar Hill label when she was a senior in high school. She has studied at the New England Conservatory, been nominated for a Grammy, and performed on "Austin City Limits" and "A Prairie Home Companion" and at the likes of the Bonnaroo, Telluride, and Newport music festivals. Sarah's fine new album, "Build Me Up from Bones," has just been nominated for a 2014 Americana music award.