Four Fridaynight dates have been added to the Barnegat Township Recreation Department free concert schedule at the municipal dock. Sponsored by Jim Hankins House of Bluegrass and Country Oldies, the schedule is Custom Blend, July 19;Basement Musicians, Aug. 2; Michael Patrick and the Ring of Fire Band (tribute to Johnny Cash), Aug. 9; and Elaine and the Cimarron Sky Band, Aug. 23. All concerts begin at 7 p.m.