Adele - Someone Like You -

Scientists have noted the song’s use of "appoggiaturas"—ornamental notes that clash with the melody to create tension before resolving. This musical "clash" triggers a physical emotional response in listeners.

The song is a rare "piano-and-vocal-only" ballad to reach #1 on the Billboard Hot 100. Without the distraction of heavy production, her vocal nuances—including a "near-shrieked whisper" in the chorus—take center stage. A Career-Defining Moment Adele - Someone Like You

While much of 21 was fueled by the anger of a breakup (think "Rolling in the Deep"), "Someone Like You" represents the final stage of grief: acceptance. Without the distraction of heavy production, her vocal

She co-wrote the track with Dan Wilson (of Semisonic), who also played the iconic piano accompaniment. Why It Makes You Cry: The Science Why It Makes You Cry: The Science Adele

Adele mentioned she wrote it because she was "exhausted from being such a b***h" in her other tracks and needed to write something that made her feel okay with the two years she spent with him.

Adele wrote the song to come to terms with the end of her first "real" relationship. A few months after they split, her ex was already engaged to someone else.

The song’s global dominance was largely fueled by a single, legendary performance. Someone Like You (song) | Adele Wiki | Fandom