void main()
{
    object oMe=OBJECT_SELF;
    int nSong=GetLocalInt(oMe,"nSong");
    object oArea=GetArea(oMe);
    int bIsDay=GetIsDay();
    nSong++;
    SetLocalInt(oMe,"nSong",nSong);
    AssignCommand(oMe,SpeakString("** Song:"+IntToString(nSong)+" **"));
    if (bIsDay)
    { // day
      MusicBackgroundStop(oArea);
      MusicBackgroundChangeDay(oArea,nSong);
      MusicBackgroundPlay(oArea);
    } // day
    else
    { // night
      MusicBackgroundStop(oArea);
      MusicBackgroundChangeNight(oArea,nSong);
      MusicBackgroundPlay(oArea);
    } // night
}