The Medford Family Network continues its outdoor summer concert series with former Medford resident Alastair Moock performing at Harris Park. Long one of Boston’s premier folk artists, Moock turned his attention to family music after the birth of his twins in 2006. He is a 2013 Grammy nominee for children’s music, a three-time Parents’ Choice Gold Medal Winner and recipient of the ASCAP Joe Raposo Children’s Music Award.

Children’s activities, free books, and community information will be offered in the park from 5 to 6 p.m., followed by the concert from 6 to 7 p.m.