    # File lib/rubygame/deprecated_mixer.rb, line 331
      def self.load_audio
        Rubygame.deprecated( "Rubygame::Mixer::Music", "3.0" )

        music = SDL::Mixer.LoadMUS( filename )

        if( music.pointer.null? )
          raise( Rubygame::SDLError,
                 "Error loading audio music from file `%s': %s"%
                 [filename, SDL.GetError()] )
        end

        return new( music )
      end