private async Task SetSongs()
        {
            MusicFiles    = new List <MediaItem>();
            AllMusicFiles = new List <MediaItem>();
            ClearMessage();
            _musicDictionary.Messages = new List <string>();
            var musicFiles = _musicDictionary.GetSongs();

            AllMusicFiles = musicFiles?.Select(music =>
            {
                music._Duration         = music.Duration;
                music._DurationTimeSpan = TimeSpan.FromSeconds(music.Duration)
                                          .ToString(music.Duration > (60 * 60) ? @"hh\:mm\:ss" : @"mm\:ss");
                return(music);
            }).OrderBy(m => m.Title).ToList();

            IsMediaExists       = AllMusicFiles.Count > 0;
            MusicFiles          = AllMusicFiles;
            IsPermissionGranted = IsMediaExists && _musicDictionary.MediaLibraryAuthorized;
            SortOrderBy(PlaylistSortBy);
            if (MusicFiles.Count == 0)
            {
                if (!_songReloaded)
                {
                    _songReloaded = true;
                    SetActivityResource(false, showBusy: true, busyMessage: "Reloading . . .");
                    await Task.Delay(TimeSpan.FromMilliseconds(1500));

                    //await SetSongs();
                    RefreshCommand.Execute(null);
                }
                else
                {
                    SetActivityResource();
                }
            }
            else
            {
                SetActivityResource();
            }
        }