Retailers don’t just sell products anymore. They sell an environment, and that environment is engineered down to the beat-per-minute of the background music and the concentration of scent molecules in the air. This isn’t guesswork or decor dressed up as strategy – it’s measurable psychology, and the retailers who treat it that way are the ones seeing it show up in their transaction data.
What sensory branding actually is
Sensory branding involves the application of sight, sound, smell, and sometimes touch to form a steady, intentional image of a brand within a customer’s consciousness. The main concept isn’t recent. In 1973, Philip Kotler published a paper on “atmospherics” explaining how a space’s designed environment – such as lighting, arrangement, and sound – equally influences the buying process compared to the actual products being sold on the shelf.
What’s evolved is the increased ability of retailers to regulate and evaluate this environment. Sound and scent are not perceived by the brain as distinct stimuli. Rather, it’s digested as a unified impression, mostly at an unconscious level, and this consolidated impression is what customers will recall. A store with no discernible scent and the sound of silence is still sending a message; it’s sending the message the business had not intended.
This is the segment of most content on marketing that gets ignored. Sensory branding isn’t just about “setting the mood.” It’s about regulating the stimuli known to impact a customer’s spending habits that can be replicated in an experimental setting.
The 38% number that started it all
In 1982, researcher Ronald Milliman put a real supermarket to the test, alternating slow-tempo and fast-tempo background music every other day over several weeks. As reported in the Journal of Consumer Research, slow-tempo music upped sales by about 38% compared to fast – not because customers bought more on each trip, but because they moved through the store more slowly. They also had more time to notice the things they hadn’t planned to buy.
That result has been cited and replicated for over four decades now because it’s straightforward and it holds up. Tempo affects pace. Pace affects dwell time. And what ends up in the basket.
The practical takeaway is simple but often ignored: if you want people to browse and discover, slow music is your friend. Fast-casual and quick-service, transit-adjacent and hustle-bustle – fast is cashing out, clean up, and turn the seats. Use the wrong tempo for your business model and you’re literally cutting your own sales potential. A boutique playing upbeat pop is rushing customers right past the impulse purchases it’s looking to trigger.
From Muzak to licensed streaming: why the old model broke
During the 20th century, “background music” used to be Muzak – instrumental, unnoticed, almost imperceptible. It served its purpose at the time, but it left retailers with an image issue. Muzak came to mean stale, unmemorable, almost annoying music of the atmosphere. No one wished their brand to be associated with elevator music.
So far so reasonable, but wrong: many retailers merely began playing a manager’s streaming account via the speakers in the store. It felt like a game changer. It eliminated the “boring” issue. It developed two more.
The first is legal. Music streaming services for consumers are supposed to be used for personal, non-commercial use. Playing these services in a business space – a shop, a gym, a restaurant – typically contravenes that license agreement and is also not covered by the performance rights that organizations such as ASCAP, BMI, SESAC, and PRS are responsible for managing. These retailers are not at a hypothetical risk; they violate the license they have agreed to, and enforcement has caught up with plenty of businesses that assumed no one was checking.
The second issue is that consumer apps weren’t meant for business use. They can’t schedule music to match the different times of day, ensure the same volume across all your stores, and a personal account might throw a poorly timed song into your perfectly crafted mood. Lose that mood-building song right before your Saturday afternoon rush, and it’s more than a customer experience hit – it’s a potential lost sale.
All the above is what dedicated business-to-business services were designed to avoid. B2B streaming services utilize music catalogs that are cleared by rights holders for business playback. They often layer scheduling and curation over this licensed playback in ways that consumer services simply weren’t ever assembled to do. Take Practical Stream as an example. It’s a program that looks at a retailer’s audio content in the same way it does that retailer’s lighting or flooring – certainly not as someone’s mobile device playlist. This is what was really new: audio as an intentional, actively-managed part of your experience.
Sound doesn’t work alone – the scent layer
Music is the loudest lever, literally, but it’s rarely the only one. Ambient scent marketing has its own body of research showing that a subtle, well-matched scent can increase satisfaction and time-in-store even when customers can’t consciously identify what they’re smelling.
The interesting finding is what happens when sound and scent are combined and matched in mood. Studies on multisensory retail environments consistently find that congruent sound-and-scent pairings outperform either sense alone on satisfaction and purchase intent. A citrus scent paired with upbeat music reads differently to the brain than the same scent paired with slow ambient tones – and retailers who coordinate the two are getting a lift that single-sense strategies leave on the table.
This is where sensory branding stops being a music decision and becomes a systems decision. The store’s smell, sound, lighting, and even temperature need to point in the same emotional direction, or they cancel each other out.
The modern retail tech stack
What makes today’s sensory branding so different from its Muzak-era predecessor is the level of tech built into it. A typical contemporary install will feature:
AI-curated playlists that switch up depending on the time of day, day of week, or even the weather, rather than a set-it-and-forget-it loop cycling over an eight-hour day.
Dynamic scheduling that ingests foot-traffic data, allowing an influx of late-afternoon shoppers to be reinforced by an uptick in tempo without some poor sap behind the counter hitting skip track.
Integration with other in-store tech, from your digital signage and sensor systems so the audio is a seamless layer of a broader personalization play, rather than a dumb speaker hanging from a ceiling tile.
Centralized control over multiple locations, ensuring that new coffeeshop opening in Austin has the same branded tunes as the one in Portsmouth, NH.
All pretty set-and-forget. It does mean switching over to a commercial streaming service set up to do it, which is why the move away from old-school music subscriptions has been so swift as soon as everyone realized half the above could just run on autopilot.
Matching the strategy to the store
What may be a successful strategy in a high-end retail setting may not necessarily work in a grocery store, and vice versa. So, the context of where music is being played matters more than we think.
For instance, high-end retail generally plays slow-tempo, low-volume music to enhance the feeling of exclusivity. Meanwhile, grocery and big-box retail stores aim to play familiar, moderately paced music that doesn’t offend anyone – the goal being comfortable browsing for as many different customers as possible. In fast-food restaurants, the tempo of the music is supposed to make the tables turn faster, without the customers feeling rushed.
The volume of the music also matters greatly. Music that’s audible but doesn’t get in the way is seen as a comfortable scenario for the customers. Too loud music will prevent customers from sticking around, more so than fast-paced songs. Too low music is just noise – you don’t engage the customer or set the beat of shopping at all. In short, louder isn’t better or worse – it’s an intentional decision that adds to the overall vibe you’re trying to create.
An audit framework retailers can actually use
Retailers who want to fix or upgrade their sensory strategy, the good news is you don’t need to write a check to a consultant to get started. A basic audit looks like this:
First, walk in. What’s playing right now? Is it even on a licensed commercial service? A lot isn’t. It’s on someone’s Spotify. That is a compliance problem long before it’s a strategy problem.
Second, what do you want the music (or silence, or scent) to do? Relax customers into a slower, more satisfying shop? Rev them up to buy fast and leave? Put them right into a particular mood or demographic? If you don’t know, you might as well be flipping a coin with the station on a local easy listening radio.
Third, replay and curation is the secret weapon of all successful sensory brands. Get a service that matches your content to the mood you seek, not a bland generic loop of songs, or worse, just the guy pressing play in the morning and stopping at night because you could not be bothered.
Finally, measure it. Dwell time, average transaction value, and repeat visit rate are the three numbers that tell you whether the new audio environment is actually doing its job, not just sounding nicer. This last step gets skipped constantly. Retailers will invest in the platform and never check whether dwell time actually moved. The data loop is what turns sensory branding from a hunch into a repeatable, provable revenue lever.
Where this is headed
The next phase of sensory branding is already showing up in pilot programs: biometric feedback that adjusts soundscapes in real time based on aggregate customer response, spatial audio that changes character as a shopper moves through different zones of a store, and tighter integration between online brand identity and in-store sound so the experience feels continuous across an omnichannel journey.
All of this raises a fair question about privacy – measuring customer response in real time means collecting some form of data on customer behavior, and retailers will need to be upfront about what’s being tracked and why. The technology is moving faster than the norms around it, and the retailers who get ahead of that conversation will have an easier time than the ones who wait to be asked.
Sound and scent were never just decoration. They’re inputs a retailer can control, tune, and measure, and the tools to do that precisely now exist for businesses of any size. The only real mistake left is treating the store speakers as an afterthought when they’ve been shown, for over forty years now, to move the needle on sales.
