Sophomore drummers Valentin Lopez, foreground, and Jonathan Krissel, far right, perform with Marana High School band director James Attebery, middle, who is on cymbals, as volunteers try to qualify as horseback marshals. Horses can scare easily so getting them used to strange sounds like band music and new objects like flags can help them adjust to some situations they may encounter at the parade. The qualification process is necessary for the safety of the parade participants and spectators, said Rick Monje, the horse marshal chairman.