What key details about aissawa can be extracted from the following bio? Bio: the aissawa -lrb- also aissawa , issawa , aissaoua , issaoua -rrb- is a religious and mystical brotherhood founded in meknes , morocco , by '' sheikh al-kamil '' mohamed al-hadi ben issa -lrb- or aissa -rrb- -lrb- 1465 -- 1526 -rrb- , best known as the '' shaykh al-kamil '' , or '' perfect sufi master '' . the terms aissawiyya -lrb- ' isawiyya -rrb- and aissawa -lrb- ' isawa -rrb- , derive from the name of the founder , and respectively designate the brotherhood -lrb- tariqa , literally : '' way '' -rrb- and its disciples -lrb- fuqara , sing . to fakir , literally : '' poor '' -rrb- . they are known for their spiritual music , which generally comprises songs of religious psalms , characterized by the use of the oboe ghaita -lrb- similar to the mizmar or zurna -rrb- accompanied by percussion using polyrhythm . complex ceremonies , which use symbolic dances to bring the participants to ecstatic trance , are held by the aissawa in private during domestic ritual nights -lrb- '' lila '' - s -rrb- , and in public during celebrations of national festivals -lrb- the '' moussem '' - s , which are also pilgrimages -rrb- as well as during folk performances or religious festivities , such as ramadan , or mawlid , the '' birth of the prophet . '' these are organized by the moroccan and algerian states .
- name is aissawa- background is group_or_band- genre is ritual , sacred , trance