Oct. 9 & 23. All musicians age 18 and up invited to bring their acoustic instruments to play bluegrass-style music. Vocalists welcome. In case of either very warm or wet weather, please call by 3 p.m. 7–9 p.m. (doors open at 6:30 p.m.), Senior Center, 1320 Baldwin. $5. (734) 794–6250.