Sara Bareilles’ long-awaited return to the studio album format, “Good Grief,” poses an intriguing question: Can mourning actually feel uplifting? The record, her first in seven years, dives headfirst into themes of loss, mortality, and emotional resilience—subjects that might typically be softened in a marketing campaign. Yet, the singer-songwriter, known for her luminous mezzo-soprano and theatrical flair, refuses to shy away from the raw edges of grief