public void AddSongAlbum(SongAlbum salbum) => context.SongAlbums.Add(salbum);
public void DeleteSongAlbum(SongAlbum songAlbum) => context.SongAlbums.Remove(songAlbum);
public void UpdateSongAlbum(SongAlbum salbum) => context.SongAlbums.Update(salbum);