The Alberta folk singer-songwriter Sister Ray is known for writing songs about heartbreak and sadness. But they decided to try something different with their new album, “Believer,” which is all about love and connection. This past spring, Ella Coyes of Sister Ray joined Tom Power to talk about how “freeing” it is to write about joy, how growing up around Métis art influenced their love of music, and why they think the embarrassing parts of being human are what connect us most.