acman3, thanks for finding that article. That's what I was talking about when I said other musicians regard him highly. On the level of Billie Holiday! High praise.
mahgister, on the topic of Persian singers I have a story. I was a pretty wild young guy at 21. My girlfriend and I had $300 and two charter tickets to London. From London we hitched through Europe, mostly took trains through Turkey, but in Iran, people wanted to pick us up to speak English. Plus my girlfriend was beautfiul.
We were theoretically going to India, but were running out of money. We hit the last town in Iran before Aghanistan. Very religious. One guy pulled a knife on us simply for being infidels. We had a local who was showing us around and he took us into a club, I guess you'd call it. And I was floored because the Iranians at the border were so religious, but on stage was a woman singer, and she had one of the most soulful voices I've ever heard.