June 1- From Afghanistan we move into one of the most influential of all ancient musical cultures, that of Persia, modern day Iran. From India to Western Europe the sound of instruments that had their origins in Iran thousands of years ago still dominate, and the ancient dastgah modes still can be heard everywhere. Vocal music is in many ways the key- poetry, often by masters like Rumi, set to modern improvisations on traditional scales. We’ll investigate.