Manal and Alaa's bit bucket free speech from the bletches

I guess if you try to contact m.hassan Elbahr Darwish the grandson of sayed darwish he may help you to do this. He already established long time ago a children chorus for sayed Darwish music in sporting Club in Alexandria http://www.sayeddarwishelbahr.com/Coral.htm so maybe he has already the music written in notes

This site maybe a good way to reach him http://www.sayeddarwishelbahr.com/index.htm if you are serious about it I guess you may compromise in a way :) he is not the most fun person to deal with he's a little bit harsh (and classical) about the way sayed Darwish music is presented. You may give it a try or you may try to contact one of the member of the chorus even i dont think they used notes.