GWAS of Active Music Engagement Frequency in the Canadian Longitudinal Study on Aging
This genome-wide association study of 23,782 Canadian older adults reveals that active music engagement is moderately heritable with 21 suggestive genetic loci, shares genetic architecture with cognitive and motor functions, and is bidirectionally linked to musical rhythm ability, highlighting its neurobiological basis and potential role in healthy aging.
Original paper licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). This is an AI-generated explanation of a preprint that has not been peer-reviewed. It is not medical advice. Do not make health decisions based on this content. Read full disclaimer
For decades, scientists have known that our genes influence how we think, move, and interact with the world. But music is different. It is a universal human experience that we choose to do, often for joy, connection, or simply because it feels right. While we know that some people are naturally better at keeping a beat or learning an instrument, and that playing music can help older adults stay sharp and socially active, the biological roots of why some people engage with music more than others have remained a mystery. Is the urge to sing in a choir or play a guitar written into our DNA? And if so, does that genetic blueprint also shape how well our brains and bodies function as we age?
A team of researchers set out to answer these questions by looking at the genetic code of nearly 24,000 older adults in Canada. They focused on "active music engagement," which simply means how often a person plays an instrument or sings, rather than just listening to music. By scanning the DNA of these participants, the team searched for tiny variations in the genetic code that might explain why some people are more likely to make music a regular part of their lives. They were not looking for a single "music gene," but rather a complex web of thousands of small genetic signals that, when added together, create a tendency to engage with music.
The study, conducted using data from the Canadian Longitudinal Study on Aging, revealed that the frequency with which people play music or sing is indeed influenced by their genetics. About 11 percent of the differences in how often people make music can be attributed to their genetic makeup. This is a moderate amount, similar to what is seen in other complex human traits like height or personality. The researchers found 21 specific areas in the genome that showed a strong link to music engagement, though none reached the highest possible level of statistical certainty. These genetic signals were not random; they clustered in parts of the genome that control how genes are turned on and off in the brain, particularly in regions involving nerve cells and the support cells that keep them healthy.
One of the most striking discoveries was the location of the strongest genetic signals. The top hits were linked to gene activity in the cerebellum, a part of the brain at the back of the skull that is crucial for timing, movement, and rhythm. This finding aligns with what we know about how music works in the brain: it requires precise coordination of movement and sound. The study suggests that people who have a genetic makeup that supports strong function in this part of the brain are more likely to find themselves playing an instrument or singing regularly. It appears that the biological machinery for rhythm and timing is deeply intertwined with the desire to engage in music.
Beyond just explaining why people make music, the research uncovered a fascinating connection between music engagement and overall health in aging. The same genetic factors that made people more likely to play music were also linked to better cognitive function, such as faster thinking and sharper memory, as well as better physical balance and walking speed. People with a genetic tendency for frequent music engagement also tended to be more socially active, volunteering more and attending religious services. However, the picture was not entirely one-sided. The same genetic profile was also associated with a slightly higher risk for mood disorders, such as depression or bipolar disorder. This suggests a complex biological trade-off: the genes that drive a person toward the creative, socially rich world of music might also make them more sensitive to emotional struggles.
The researchers also investigated the direction of these relationships. They asked whether being good at rhythm causes people to play music, or if playing music makes people better at rhythm. Their analysis pointed toward the former: a genetic predisposition for keeping a steady beat appears to drive people to engage more frequently with music. In other words, the biological ability to synchronize with a rhythm seems to be a root cause that leads people to pick up an instrument or join a choir, rather than just a result of the practice.
This work shifts the conversation about music and aging. Instead of viewing music merely as a therapy to be prescribed to those who are struggling, the study suggests that the habit of making music is a natural expression of a healthy, resilient biology. The people who sing and play are not just enjoying a hobby; they are living out a genetic potential that supports their mental and physical well-being. While the study was limited to people of European ancestry and relied on self-reported habits, it provides a clear map of the genetic landscape behind musical behavior. It shows that the urge to make music is a real, measurable part of our biology, deeply connected to how our brains and bodies work, and that this connection is a significant piece of the puzzle for understanding healthy aging.
Drowning in papers in your field?
Get daily digests of the most novel papers matching your research keywords — with technical summaries, in your language.