Mickey, I have real player on my computer but I was unable to access your song.However, regarding blasphemy, it must stem from one's heart. From the description of the song, I wonder what would upset people to the point of calling you a blasphemer.
To some, questioning God is blasphemy. I do not believe that is true. If God is not big enough to take honest questioning, the He is not big enough to be called God.
God knows us by our hearts. We may look holy to the masses and still be full of dead men's bones; or, we may look vile to man, and yet be holy before God.
What is in the heart is the "heart of the matter". If blasphemy was not in your heart when you wrote this song, you are not a blasphemer.
I thank you for your concern. Even that is a sign of what is in your heart.
Grace and Peace to you.
khandu