by Charles Kruger   Even the most determined opera resister will have heard of “I Pagliacci,” the tragic story of a clown,  told in Ruggero Leoncavallo’s great one-act masterpiece of opera “verismo” (“realistic” opera about common people). Fewer will be familiar with “Cavalleria Rusticana,” another one act verismo masterpiece by Pietro Mascagni, both dating from the […]