Sept. 8 & 22. All invited to join an evening of this early American form of hymn singing that uses musical notation with distinct shapes to make learning easier. Songbooks available. No experience required. 7–9 p.m., Riverside Arts Center, Off Center Bldg., 76 N. Huron St., Ypsi. Free. (734) 480–2787, riversidearts.org/shape-note-singing-ypsilanti.