Teacher, violinist, and author Marc Widershien will perform at EPOCH Senior Healthcare of Chestnut Hill, 615 Heath St, on Friday, Sept. 2 at 2:30 p.m. This event is open to the public at no charge. Space is limited so a reservation is requested. For more information or to RSVP, please call 617-243-9990. For more information about EPOCH, visit www.epochsl.com/blog.