In the realm of theater, few productions have dared to tackle the profound themes of illness and mortality as thoughtfully as “Night Side Songs.” This new musical, crafted by Daniel and Patrick Lazour, is not only a tribute to the struggles of cancer patients but also a testament to the insights of palliative care expert Susan Block, who guided the creative process.Inspired by Susan Sontag’s poignant observation that “illness is the night side of life,” the show delves into the complex emotional landscape surrounding terminal illness through its emotionally evocative performances.