In 2011, a team at McGill University in Montreal scanned the brains of volunteers as they listened to their favourite music. They discovered that the moment a piece of music reached its emotional peak, the brain released dopamine — the same chemical produced when we eat something delicious or fall in love. The finding was striking because music, unlike food or shelter, has no obvious survival value. The team also noticed that people who regularly played an instrument had stronger connections between the two halves of the brain. Since then, dozens of follow-up studies have supported the idea that active music-making — not just listening — is unusually good for the developing brain.
