(Photo: Olivia Da Costa) One of Ireland’s most exciting young singing talents is Dublin-born soprano Ava Dodd. At only 25, she already has an impressive biography. Not only has she appeared on the stage in a variety of roles, including Oscar from Verdi’s “Un Ballo in Maschera,” the Waldvögelein from Wagner’s “Siegfried” and Perdita from Goldmark’s “Ein Wintermärchen,” in venues {…}