code: def cmd_playtune(self, args):
          '''send PLAY_TUNE message'''
          if len(args) < 1:
              print("Usage: playtune TUNE")
              return
          tune = args[0]
          str1 = tune[0:30]
          str2 = tune[30:]
          if sys.version_info.major >= 3 and not isinstance(str1, bytes):
              str1 = bytes(str1, "ascii")
          if sys.version_info.major >= 3 and not isinstance(str2, bytes):
              str2 = bytes(str2, "ascii")
          self.master.mav.play_tune_send(self.settings.target_system,
                                         self.settings.target_component,
                                         str1, str2f cmd_playtune(self, args):
          '''send PLAY_TUNE message'''
          if len(args) < 1:
              print("Usage: playtune TUNE")
              return
          tune = args[0]
          str1 = tune[0:30]
          str2 = tune[30:]
          if sys.version_info.major >= 3 and not isinstance(str1, bytes):
              str1 = bytes(str1, "ascii")
          if sys.version_info.major >= 3 and not isinstance(str2, bytes):
              str2 = bytes(str2, "ascii")
          self.master.mav.play_tune_send(self.settings.target_system,
                                         self.settings.target_component,
                                         str1, str2)
docs: send PLAY_TUNE message