The fourth event in the 2018 Chester City Park Board’s Summer Concert Series will feature the New Galilee, Pa., family band Echo Valley on Friday. The band has been entertaining people of all ages since 2009 with its variety of traditional bluegrass, gospel, Celtic and folk styles. The band has a unique blend of six sisters and one brother and has played regularly at major bluegrass and heritage festivals throughout Western Pennsylvania, including this summer at Pittsburgh’s Three Rivers Arts Festival. The music will begin at 6:30 p.m. at the Davis Brothers’ Pharmacy Pavilion in Chester. Admission will be free, and attendees are reminded to bring lawn chairs.