Great Lakes Chamber Orchestra is performing a Children's Halloween Concert with a Costume Parade at 4 p.m. Saturday, Oct. 29 at the United Methodist Church of Petoskey. Admission is $10 for adults and free for anyone 18 and under. Listen and enjoy Danse Macabre by Saint Saens with Spencer Tallman as our Guest Conductor; Lemony Snicket, The Composer is Dead by Stookey; and Mendelssohn's Piano Concerto in G Minor. Featuring GLCO's Concerto Competition Winner, Isaac Wittenberg, performing Mendelssohn's Piano Concerto in G Minor. Tickets are available at www.glcorchestra.org.