function runPlayPauseKeyDownEvent() {
    /*
      If the song is paused, we play the song. If the song is playing,
      we pause the song.
    */
    if (_config2.default.audio.paused) {
      _core2.default.play();
    } else {
      _core2.default.pause();
    }

    /*
      Now we sync all the elements to match the state of the audio.
      We don't need to do any checks on new songs or changed playlists
      in the global since it's whatever song is playing.
    */
    _playPauseElements2.default.sync();
  }
Runs the play pause method for key down.