(Photo: Padraig Grant) The second of Wexford Festival’s pocket operas, Opera Beag, was a presentation of Donizetti’s opéra-comique “La Fille du régiment.” Operating on a low-budget and using only piano accompaniment, director Heather Hadrill was under no illusions of the difficulties involved. In her program notes, she stated “The challenge of pocket operas is to give as full a sense {…}