//main関数内
　gtk_init (&argc , &argv);
  SDL_Init( SDL_INIT_AUDIO  );

  Mix_OpenAudio(MIX_DEFAULT_FREQUENCY,
		MIX_DEFAULT_FORMAT, 2, 1024);

void music_set(int n)
{
  switch(n){
  case 0:
    gameover = Mix_LoadMUS(Music_GameOver);
    break;
  case 1:
    backmusic_c1 = Mix_LoadMUS(Music_Part1_main);
    break;
  default:
    break;
  }
  Mix_AllocateChannels(16);        // 同時発声数を設定
  return;
}

void music_play(int n)
{
  switch(n){
  case 0:
    Mix_PlayMusic(gameover,-1);
    break;
  case 1:
    Mix_PlayMusic(backmusic_c1, -1);
    break;
  default:
    break;
  }
  return;
}

void music_quit(int n)
{
  Mix_HaltMusic();             // 曲の再生停止  
  switch(n){
  case 0:
    Mix_FreeMusic(gameover);
    break;
  case 1:
    Mix_FreeMusic(backmusic_c1);            
    break;
  default:
    break;
  }
  return;
}

//cb_quit関数内
  Mix_CloseAudio();               
  SDL_Quit();                    

void music_set(int n);
void music_play(int n);
void music_quit(int n);
#define Music_Part1_main "./music/jingiss.mp3"
#define Music_GameOver "./music/gameover.mp3"