Music engages memory through multiple reinforcing channels at once — rhythm, melody, rhyme, and repetition all act as built-in retrieval cues that plain text studying usually lacks. A song's rhythm naturally breaks information into predictable chunks, and melody adds an emotional, multisensory hook that strengthens encoding beyond what memorizing isolated facts typically achieves. Repeated exposure (hearing a song dozens of times casually, versus cramming a topic once) also plays a huge role — it's spaced repetition you didn't realize you were doing.