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Behind the Behaviour· Stefan van de Brug ·4 min read🇳🇱 NL

How to recognize sensory overload in a lesson

Not difficult, just full — why sensory overload can look like unwillingness.

Last year I had a student — I’ll call her Nora here — who hit a kind of wall halfway through every lesson. Not visibly, not dramatically. She just played with slightly less precision, made mistakes she hadn’t made before, and stared at her hands as if she no longer recognised her own fingers. Then, after a minute or two, she would lower her eyes and say: “I just don’t know anymore.”

At first I thought she wasn’t practising enough at home. Later I thought it was concentration, or lack of sleep. But one day I decided to do nothing — I turned off the metronome, said we were pausing, and asked how she was doing. She looked at me as if it were an unexpected question. Then she said: “it just becomes too much, the sound and the thinking at the same time.”

She had been saying it the whole time. Just not with words.


Sensory overload during a music lesson has a face that doesn’t always match the picture we carry in our heads. We think of outbursts, tears, a child who crosses their arms and shuts down. But often it’s quieter than that. It’s the student who slows down instead of speeding up. Who suddenly makes more mistakes in a piece they already knew. Who looks away, makes a joke, or starts fiddling with their instrument.

What helps me is watching for the difference between the beginning and the middle of a lesson. Every student has a certain rhythm: a warm-up phase, an opening, then the work. When that rhythm breaks — when the energy doesn’t rise but drops sharply — something is going on. Not necessarily overload. But it’s a signal asking a question.


Music is sensorially demanding. We forget that as teachers, because we’ve grown so used to it. But for a student who is sensitive to sound, movement, visual information, or social pressure, a music lesson is an environment full of stimuli constantly competing for attention. The sound of the instrument. The click of the metronome. My voice. The feedback I give. The notes on the page. The feel of the sticks, the strings, the keys. The awareness of one’s own body position.

All of those channels at once.

And on top of that I ask: play through this piece, watch your posture, count along and also pay attention to the transition into the bridge.

For some students that’s a normal instruction. For others it’s an overload of a system that was already running close to the edge.


The moment I actually changed something in how I work was when I realised that sensory overload isn’t a personality trait — it’s a state. Nora wasn’t someone who overloads easily as a fixed characteristic. She was overloading at this moment, in this lesson, after twenty minutes of intensive work on a complex piece with a lot of new information.

That distinction opens something up. Because a state can be influenced.

I started paying attention to the information density of my instructions. How much am I giving at once? I began building in silences — not as wasted time but as processing space. I started varying the pace: after something new and intensive, something familiar and easy. Not as a reward, but as room to breathe.

And I started asking. Not “do you understand?” — because that’s a question that blocks no as an answer — but: “how does it feel right now?” Or simply: “shall we pause?”


What I noticed: students who are sensitive to overload usually know it themselves. They’ve just learned that it isn’t allowed to be said. That you push through. That it’s their problem, not the lesson’s problem. They’ve developed strategies to hide it — being funny, being distracted, stopping trying — because that costs less face than saying: I’m full.

Nora told me this months later, when we talked about it. “I thought you’d think I didn’t like it.”

She loved it. She wanted nothing more than to get better. She was just full.


There’s no method that solves this. No checklist with five steps. What there is, is a way of looking that you train over time. You learn to read behaviour not just at the surface — that student is being difficult, that student isn’t paying attention — but you start asking: what might be underneath? Is this unwillingness, or is this a system that has run out of capacity?

That’s a different kind of attention. And it costs something — letting go, temporarily, of your own expectations about how the lesson was supposed to go.

I sometimes wonder: how many students have ever quit music because a teacher thought they didn’t want it, when really they were just full?

A student who stops trying isn't lazy. She's full.