/// <summary>
/// Gets all songs of the specified artist
/// </summary>
/// <param name="artistId">artist ID</param>
/// <returns>All available songs</returns>
public IEnumerable <SongDTO> GetAllSongsForArtist(int artistId)
{
var albums = artistService.GetAllAlbumsForArtist(artistId);
List <SongDTO> songs = new List <SongDTO>();
foreach (var album in albums)
{
foreach (var songID in album.SongIDs)
{
songs.Add(songService.GetSong(songID));
}
}
return(songs);
}