It will be the end of one chapter and the beginning of another for 393 Warren County High School seniors Friday night.Graduation is set to begin at 7 p.m. at Nunley Stadium with the extended forecast calling for high afternoon temperatures in the 90s, but no rain.Seniors should be at McMinnville Civic Center no later than 5:30 p.m. Friday to load buses for the ride to Nunley Stadium. Line up on the track begins at 6 p.m.In a change this year, the WCHS band will play the processional music. Cheyenne Clark will sing the national anthem with Lorin Rubley singing “Don’t Forget to Remember Me” by Carrie Underwood.The 11 class of 2012 valedictorians will give a combined speech entitled “The Journey Begins.”In other graduation changes, executive principal Tony Cassel says he hopes to eliminate beach balls and other inflatable objects being batted around by seniors during the ceremony.