Richard Nickerson directs the Maine Music Society Chorale during rehearsal Monday at the Franco Center at 46 Cedar St. in Lewiston. The 70-plus members will showcase a variety of musical genres from 1972, the year the chorale was formed, Saturday at 7 p.m. and Sunday at 2 p.m. Tickets are available online at mainemusicsociety.org or by calling 207-333-3386. Daryn Slover/Sun Journal