. "Criticism, interpretation, etc" . . . . . . . . . . "Early works" . "Amīr Khusrau's prose writings on music in Rasāʼilʼul iʻjāz better known as Iʻjāz-i Khusrawī (Risāla II, Khaṭṭ 9, ḥarf iii)" . . . "500 - 1400" . . . .