Kursī (which suggests chair, but possibly failed to at first confer with that in context; the origin and meaning are unidentified, but it can be translated as "enthronement") usually starts on Thursday and lasts seven times. It's the longest and many complex ceremony. The laylat al-hinna is on Thursday, https://khaled-agag66665.tblogz.com/how-zar-music-can-save-you-time-stress-and-money-44681132