The Comhaltas Ceoltóirí Éireann Hanafin-Cooley branch of Boston will hold a special ceili on Sun., Aug. 5, to benefit local musicians who are competing in the All-Ireland Fleadh Cheoil later this month. Boston Comhaltas musicians will play at the ceili, which takes place from 3 p.m. to 7 p.m. at Concannon’s Village, 60 Lenox St., in Norwood. Admission is $10. This past spring, Greater Boston-area entrants qualified in nine categories for the All-Ireland Fleadh, which takes place August 10-20 in Cavan.