In her TED Talk, musician and professor Scarlet Keys delves into how songwriters harness musical elements like tone, melody, chords, and repetition to stir specific emotions in their audience. She highlights how these components, especially in songs like Adele's "Someone Like You," can evoke feelings of stability or instability, shaping our emotional reactions. Keys also shares her personal journey with breast cancer, illustrating how music serves as a powerful tool for processing tough emotions, offering a therapeutic escape and fostering connections through shared experiences.