For over 20 years, scientists have been playing music to dogs and measuring what happens. Most of these studies took place in rescue shelters and kennels, which are noisy, unfamiliar places where dogs are often stressed. Again and again, researchers found that the right kind of music helped dogs rest more and bark less.
How dogs hear the world
Dogs hear far more than we do. They pick up much quieter sounds, and much higher ones too. That is why a doorbell, a car door or a distant firework can send a dog running to the window long before you notice anything.
For an anxious dog, every one of those sounds can be a reason to stay alert. Calm, steady music fills the silence and softens those sudden noises, so there is less to react to.
What the studies found
- 2002, UK rescue centre (50 dogs). Classical music led to more resting and less barking. Heavy metal made dogs more agitated.
- 2012, US shelter and boarding kennels (117 dogs). Dogs slept more and were quieter when calm classical music was played.
- 2015, Scotland (50 dogs). With music playing, dogs barked less and showed heart-rate changes linked to lower stress. But they got used to the same playlist after about a week.
- 2016, UK rescue shelter (31 dogs). Dogs were calmest of all when listening to a person reading an audiobook, which suggests a calm, steady sound matters more than the exact type of music.
- 2017, University of Glasgow and the Scottish SPCA (38 dogs). Researchers played soft rock, Motown, pop, reggae and classical music. Dogs were less stressed with music on than without, and they showed a slight preference for reggae and soft rock. Changing the style each day kept the calming effect going.
Why it helps
- It covers sudden noises. Steady sound in the background makes bangs, knocks and traffic less startling.
- It is predictable. Slow music with no sudden changes gives a nervous dog nothing new to worry about.
- It becomes a signal. If you play the same calm music at quiet, happy times, your dog starts to link it with relaxing. Later, the music itself helps them settle.
- Variety keeps it working. Because dogs can get used to one playlist, switching between styles, such as cello, reggae and Hawaii, helps the music stay effective.
Why it helps puppies
A new puppy has just left their mum and littermates for a strange house full of new sounds. The first nights are often the hardest. Soft music near their bed or crate can make the room feel less empty and help them drift off.
- Start a bedtime routine. Play the same gentle music each night so it becomes part of going to sleep.
- Practise short absences. Leave the room for a few minutes with the music on, then come back calmly. Build up slowly. This helps prevent separation anxiety from starting.
- Keep it quiet. Puppies have sensitive ears, so play it at a low, background volume.
What the research doesn't say yet
The studies so far are small, and most were done with shelter dogs rather than pet dogs at home. Every dog is different: some settle quickly, and some need time to learn that the music means calm. Music works best as one part of a routine, alongside exercise, comfort and patience. If your dog is very distressed when left alone, please talk to your vet or a qualified behaviourist.
Sources
Lindig, McGreevy and Crean (2020), Musical Dogs: A Review of the Influence of Auditory Enrichment on Canine Health and Behavior, Animals. This review summarises the 2002, 2012, 2015, 2016 and 2017 studies above. On the 2017 study: Music helps dogs chill out, especially if it's reggae or soft rock.