function syncSongInPlaylist(hours) {
    var activePlaylistIndex = _config2.default.active_playlist != "" && _config2.default.active_playlist != null ? _config2.default.playlists[_config2.default.active_playlist].active_index : null;
    /*
    Get all of the hour selectors
    */
    var currentHourPlaylistSongSelectors = document.querySelectorAll('.amplitude-current-hours[data-amplitude-playlist="' + _config2.default.active_playlist + '"][data-amplitude-song-index="' + activePlaylistIndex + '"]');

    /*
    Set the current hour selector's inner html to hours passed in.
    */
    for (var i = 0; i < currentHourPlaylistSongSelectors.length; i++) {
      currentHourPlaylistSongSelectors[i].innerHTML = hours;
    }
  }
Syncs the song in playlist song hour elements.

@param {Integer} hour - The current audio hour.