Grounds and Sounds Cafe at the Unitarian Universalist Fellowship, 380 Nicolls Road, E. Setauket welcomes Toby Walker in concert on Friday, July 12 at 8 p.m. Hailed as an award-wining roots guitar virtuoso and songwriter, Walker blends the styles of blues, ragtime, country, bluegrass, old-time jazz and rock in his music. Tickets are $15 at the door or at www.groundsandsounds.org. For further info, call 631-751-0297.