public TrackSaveService(
     ILibraryService libraryService,
     IConverter <WebSong, Track> webSongConverter,
     ILibraryMatchingService matchingService,
     IInsightsService insightsService,
     IStorageUtility storageUtility,
     IDownloadService downloadService)
 {
     _libraryService   = libraryService;
     _webSongConverter = webSongConverter;
     _matchingService  = matchingService;
     _insightsService  = insightsService;
     _storageUtility   = storageUtility;
     _downloadService  = downloadService;
 }
 public TrackSaveService(
     ILibraryService libraryService,
     IConverter<WebSong, Track> webSongConverter,
     ILibraryMatchingService matchingService,
     IInsightsService insightsService,
     IStorageUtility storageUtility,
     IDownloadService downloadService)
 {
     _libraryService = libraryService;
     _webSongConverter = webSongConverter;
     _matchingService = matchingService;
     _insightsService = insightsService;
     _storageUtility = storageUtility;
     _downloadService = downloadService;
 }