private async Task FillCollectionsAsync()
{
List <string> list = await DataGetSet.GetGenresAsync();
list.Insert(0, "NA");
_genres = new ObservableCollection <string>(list);
list = await DataGetSet.GetCatalogsAsync();
list.Insert(0, "NA");
_catalogs = new ObservableCollection <string>(list);
list = await DataGetSet.GetMediaAsync();
list.Insert(0, "NA");
_medias = new ObservableCollection <string>(list);
list = new List <string>(); // await DataGetSet.GetInterpretersAsync();
list.Add("NA");
_artists = new ObservableCollection <string>(list);
list = new List <string>(); // await DataGetSet.GetAlbumsAsync();
list.Add("NA");
_albums = new ObservableCollection <string>(list);
}