Inshad Dini and Aghani Diniyya in Twentieth Century Egypt by Michael Frishkopf

I stumbled across this extremely interesting research (click here) on the practice of Inshad Dini (Islamic hymnody) in Egypt. This is a long but extremely interesting reading for those interested in this musical genre and a useful introduction in case you plan to attend one of the many performances of Inshad that regularly take place in Cairo.