Classical arias are about passion, and Katherine Jenkins' tender mezzo-soprano brings home the sobbing peaks and desperate troughs in each emotionally charged melody. These are often taken from the classical tradition but not restricted to it. Her most plaintive vocal performances are heightened by soft and enveloping hybrid arrangements—her version of “Pachelbel's Canon” starts from an orchestral base, enhanced with twinkling synths—and she also has a dramatic way with stately popular songs, including Stormzy's “Blinded By Your Grace,” which become stirring and huge under her operatic guidance.