The "golden age" of muslim accomplishments is greatly overrated. They are, and always have been, an inferior society.
Besides providing a degree of religious tolerance not found in most of the world, Islamic Spain provided a safe haven for Jews for half a thousand years.
They were the "industrial" and "scientific" workforce that kept Spain on top in the Mediterranean, and later on provided much of the intellectual infusion into the more primitive Western European countries as they pulled out of the Dark Ages.
You cannot look at Moslem Spain without dealing with the Jews ~ they kept the place worthwhile to live in.
Until recently I hadn't realized that the Jews in Spain had their own special language. It is called Ladino. You can learn it on the net. Jews did not develop Yiddish until they moved to Eastern Europe.
Objectively, the Muslim Middle-East during the period was at the height of civilization at the time. Most of Europe was still immersed in medieval barbarism.