OKOBOJI — Join the Spirit of Harmony Chorus as they return to present free preshow entertainment under the awning at 7:30 p.m., Friday, July 26, before the Okoboji Summer Theatre production of “My Way: A Musical Tribute to Frank Sinatra.” The Spirit of Harmony Chorus, a chapter of Sweet Adelines International, is directed by Judy Weipert and assistant director Marcia Klingbeil.