A Challenge To The Dark musical theater for ensemble and one actor(Tar, Flute, Trombone, Cello, Tonband) https://www.youtube.com/watch?v=j70kviu0T3QVideo can’t be loaded: A CHALLENGE TO THE DARK – Ehsan Mohagheghi Fard (https://www.youtube.com/watch?v=j70kviu0T3Q)