By Brandy McDonnellFeatures Writer bmcdonnell@oklahoman.comPeter Markes punctuated the sentence that changed his life with a smiley face. The Oklahoma City musician was exchanging emails with his lifelong friend and bandmate Kyle Dillingham about a possible regional showcase for their acclaimed Americana outfit Kyle Dillingham & Horseshoe Road, with Markes struggling to fit the promising prospect into his busy schedule as Edmond North High School Orchestra director. “In the last line, I said, ‘Sounds like I need to resign.’ Smiley face.Read more on NewsOK.com