In one sentence
Music lessons are widely marketed as brain boosters, but a large multilevel meta-analysis finds no credible overall effect on children’s general cognitive skills or academic marks once rigorous study designs are counted.
What the researchers did
Sala and Gobet synthesized 254 effect sizes from 54 experimental reports covering 6,984 participants. They separated studies with random assignment and active control groups from weaker designs that compared music students only with children who did nothing special.
They also ran Bayesian analyses using priors informed by earlier work on cognitive training, to check whether small positive findings could be explained by chance or bias.
What they found
When design quality was controlled, the average benefit of music training programs was essentially zero and very consistent across studies.
Small positive averages appeared only in studies without random allocation and with non-active controls — patterns that often inflate apparent success.
Effects did not depend on whether outcomes were verbal, non-verbal, or speed-based, or on how long training lasted. Cross-sectional studies (comparing musicians with non-musicians without experiments) likewise did not support a general intelligence advantage.
The authors argue that optimism about music as a universal cognitive enhancer is not justified by the experimental record, even though music remains valuable for culture, motivation, and specific skills such as rhythm and notation.
What this means for learners and educators
Parents comparing school subjects should distinguish enjoyment and discipline from far transfer. Music may still help persistence, cooperation, and fine motor control, but it should not be chosen solely to raise unrelated test scores.
This paper pairs with newer reviews that find targeted benefits — for example, inhibition control — without overturning the main message: there is little evidence that music uniquely upgrades general intelligence.
Curriculum planners can invest in music for artistic and social reasons while relying on reading, math, and evidence-based study strategies for academic growth.
Limitations and what we don't know yet
Meta-analyses inherit limitations from primary studies: uneven teaching quality, dropout, and publication bias.
The review focuses on cognitive and academic outcomes, not mental health, creativity, or long-term career paths.
Individual children may thrive musically while also improving study habits for separate reasons; group averages cannot predict every learner.
Later high-quality trials on specific executive functions may show benefits in narrow domains without reviving the “music makes you smarter in everything” slogan.