The Ladies Auxiliary Ukulele Orchestra is a rare treat for irreverent unplugged fans across the country. Formed in 1994, the members now include songwriter and educators Bernice Lewis and Berni McMahon, as well as surprise guests. Close-cropped harmonies and unrestrained ukulele strumming produce a highly original sound. Their sets boast something from every era, ranging from Mozart to Radiohead, all of which benefit from fresh arrangements and a vocal delivery with tongues buried firmly in cheeks. Nothing is sacred in the Ladies’ quest for suitable material.