Harpists Patrick Ball, Lisa Lynne and Aryeh Frankfurter will present the music, myths and history of Celtic harps at 8 p.m. Friday, Oct. 28, at the Unitarian Center, 87 Fourth St., Ashland. Tickets cost $20 in advance, $22 at the door. Children 12 and younger will be admitted free, but must be accompanied by adults. The musicians will offer a workshop to explore the music of Turlough O’Carolan from 10 a.m. to noon on Saturday, Oct. 29, at the center. The workshop costs $30. Show tickets and workshop registration are available at www.stclairevents.com or by calling 541-535-3562.