public static async Task <byte[]> GetTrackAudio(string fileName)
        {
            TrackAudio trackAudio;

            try
            {
                trackAudio = await client.GetTrackAudioAsync(new TrackRequest()
                {
                    FileName = fileName, Quality = Quality.LOW
                });

                Console.WriteLine("Recuperado" + trackAudio.Audio.Length);
            }
            catch (Exception ex)
            {
                throw ex;
            }

            return(trackAudio.Audio);
        }