function gameMusic(%direction)
{
  // adjust the music selection and bounds-check
  switch(%direction)
  {
    case $BUTTON_LEFT:

      $gameData.musicSelection--;
      if ($gameData.musicSelection < 0)
        $gameData.musicSelection = 3;

    case $BUTTON_RIGHT:

      $gameData.musicSelection++;
      if ($gameData.musicSelection > 3)
        $gameData.musicSelection = 0;
  }			

  // update the label
  %tempData = TorqueDB.searchByInstanceWithClass("music", "value", $gameData.musicSelection);

  lblGameMusic.setText(%tempData.contents[$TEXT_FIELD]);

} // end gameMusic