Learning how to do traditional Irish dance steps at the Commodore Barry Club in Mt. Airy has become a St. Patrick’s Day tradition, thanks to the Philadelphia Ceili Group. Once again, this year the group invites dancers of all levels and ages to come and celebrate their Irish heritage with a fun evening of dance class at the Commodore Barry Club in Mt. Airy on Friday, March 17 at 8 p.m. The non-profit, volunteer organization, founded in 1958, is dedicated to the preservation and promotion of Irish culture.