The Metropolitan Opera has announced its next two weeks of streams that will feature Teresa Stratas, Carol Vaness, Samuel Ramey, Ben Heppner, Renée Fleming, Susan Graham, Lawrence Brownlee, and Sondra Radvanovsky. The first week’s theme will be “Happy Mother’s Day” while the second will shine a spotlight on “National Council Auditions Alumni.” All streams are available directly on the company’s official website. Week {…}