Does Fast Music Increase Sales?

Fast music can increase retail sales by approximately 8% — but only in crowded stores. A 2017 Journal of Retailing study analyzing 43,676 shopping baskets found that uptempo music in crowded conditions lifts spending through arousal congruence, while a 2023 study showed fast tempo also drives variety-seeking behavior across product categories.

In this video I challenge the old “slow is always better” playbook and show you the growing evidence that fast music has legitimate advantages — for discovery-oriented retail, crowded conditions, and variety-seeking behavior.

Everyone talks about slow music in retail. But what about fast? Is there ever a case where cranking up the BPM actually makes you more money? The answer is yes — but only in one very specific situation. And it’s a situation most stores deal with every single day. I’m Daniel Fox, I run Entuned, and this is what the research says about fast music and sales.

The conventional wisdom says fast music is bad for retail. People move faster, spend less time, buy less. And that story comes from a real place — the 1966 study in the Journal of Applied Psychology that tested volume and pace. Loud music made people exit faster. Same total sales, just compressed into less time. People have been extending that logic to fast tempo ever since. But here’s the thing: that study was about volume, not tempo. And the conflation of loud-and-fast has been muddying this conversation for sixty years.

In 2017, the Journal of Retailing published a study that analyzed 43,676 shopping baskets in a real grocery store. Not a lab. Not a simulation. Actual purchases over weeks. And they tested tempo against store density — how crowded the store was at any given time. Here’s what they found. When the store was crowded, fast music produced roughly an 8 percent lift in basket size compared to slow music. Fast music in a dense store worked. Why? Because crowding is stressful. When you’re bumping into people and the aisles feel tight, slow music creates a mismatch — the environment is telling your body to hurry, but the music is telling you to linger. That conflict is uncomfortable. Fast music resolves the tension. It matches the energy of the room. And when the sensory environment is coherent, people relax enough to actually shop. When the store was empty, fast music didn’t help. No density, no stress to resolve. But during peak hours — lunch rush, weekend afternoons, holiday season — fast tempo was the better play.

There’s another angle. A 2023 study in Frontiers in Psychology found that fast tempo increased variety-seeking behavior. People exposed to faster music were more likely to choose a range of different products rather than sticking with one category. The mechanism is arousal — fast music activates you, and that activation translates into a wider exploration pattern. Now, this was a lab study, not a field study, so take it with appropriate caution. But the implication is interesting: if your business model benefits from customers exploring your full assortment — think gift shops, specialty food stores, boutiques with diverse inventory — fast music might push them to browse more broadly.

But here’s where it gets complicated. That 2025 EMAC study — 140 stores — found no overall tempo effect in either direction. Not slow, not fast. The only subgroup that responded was loyalty program members. The general population of walk-in shoppers? Nothing. So fast music works in specific contexts: high density, engaged customers, assortment-driven retail. It fails as a blanket prescription applied to every store at every hour.

This is exactly the problem static playlists can’t solve. Your store is empty at 10 AM and packed at 1 PM. The optimal tempo is literally different at different times of day. A playlist doesn’t know that. It just plays the next track. We built Entuned’s generative engine to respond to contextual inputs precisely because the research says there’s no single right answer. The right tempo depends on what’s happening in your store right now.

Fast music isn’t the enemy of retail sales. It’s a tool — and like any tool, it works when applied to the right problem. Crowded store? Fast tempo resolves sensory conflict. Empty store? It just rushes people out. The research is clear on this. The question is whether your music system is smart enough to know the difference.

Yes — under specific conditions. A 2017 Journal of Retailing study tracking 43,676 baskets found fast music increased spending ~8% in crowded stores through arousal congruence. A 2023 Frontiers in Psychology study also found fast tempo drives variety-seeking, meaning customers explore more categories.

That was the finding in older studies (1966, 1982, 1986), and it’s true in empty, quiet stores. But in crowded environments, fast music matches the high-energy atmosphere instead of fighting it. Slow music in a packed store actually creates a mismatch — “relax” vs. “too many people” — that pushes customers toward the exit.

Three scenarios: (1) crowded periods like weekends and sale events, (2) if you’re a discovery-oriented retailer who wants customers exploring more categories, (3) high-energy brand environments. For quiet periods with repeat customers, slow tempo is still better. Entuned (entuned.co, free tier) adapts tempo to real-time store conditions. Full citations in the description. This is video 13 of 50 in this series.