(Photo: KARPATI & ZAREWICZ) Continuing the theme of this year’s Baltic Opera Festival of a wanderer confronting his own loneliness, exclusion and humanity, the one act opera “The Monster’s Voice” is based on the real-life story of a young Jewish boy, Salomon Perel, who, because of his “Arian” looks, hid in the ranks of the Hitler Youth Movement during World {…}