Write a Sound and Music Approach That Changes How the Commercial Plays

By pitch.dogFoundation13 min read20 September 2026

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A treatment that asks for "an uplifting track" and "cinematic sound design" has told the sound team two things and left them to guess everything else. Neither phrase says what we hear at any particular moment, what the audience is meant to notice, or when anything changes. "Uplifting" is a feeling the writer wants at the end. It isn't yet an instruction.

The sound and music section earns its place by describing audible action: a sound that arrives, a layer that steps back, a cue that lands on the one image carrying the scene. Four questions do most of that work.

Which sounds put us in this place, and which of them does the film decide we notice?
Whose attention are we near, if anyone's?
What is the music doing next to the image — agreeing with it, getting ahead of it, or arguing with it?
What changes, and when?

Answer those and you have a section someone can build from. Skip them and you have a mood board with a location attached.

Place the sound in the world and the listening position

Two decisions hide inside the phrase "sound design," and treatments usually collapse them into one.

The first is what belongs to the space as a matter of fact. A community hall has a door, keys, chair legs on a floor, a particular hollowness when it's empty. Call that world sound: whatever the place would produce whether or not anyone decided to record it.

The second is designed emphasis. Of all those sounds, which does this film choose to make distinct? A chair scraping is world sound. A chair scraping we hear clearly enough to understand that the volunteer is nearly finished is a decision. A treatment that lists only world sound reads as a location note. A treatment that names only emphases has no world for them to sit in.

Then there's the question underneath both: whose attention are we near? A passage can sit close to one person's hearing, near nobody in particular, or inside someone's head, and those are three different films. Say which one you're proposing. In the scene worked through below, the answer is the volunteer's attention — we hear the hall from where the work is happening, and the ticket tear comes forward because it's the thing that turns her. We stay outside her head the whole time, which matters for the next part.

The terminology is worth getting right, because a reader can take a word further than you meant. Yale Film Analysis's chapter on sound defines diegetic sound by where its source sits — inside the world of the film or outside it — and separates external diegetic sound, whose source is out in that world, from internal diegetic sound, which exists inside a character's mind: a remembered voice, a tune someone can't shake, a sound with no source in the room. Notice what the definition doesn't say. It doesn't say that every character hears it. Source and audibility are separate questions. A sound can belong to the room while only one person is in a position to notice it. Music, meanwhile, has no source in the room at all, which is why the score entering the community hall doesn't become something the volunteer suddenly hears. (The distinction here rests on that chapter's written text; its embedded clips weren't part of it.)

The distinction earns its keep the moment you try a variant. Suppose the hall already sounded full — chatter, chairs, a crowd — while the volunteer is alone with a stack of seats. That would be internal: a sound with no source in the room, turning the scene into one about wanting people to come rather than one about getting the room ready. Same location, different film. That variant is a hypothetical, not what the scene below does; it's there to show how much a listening position decides.

Give music a relationship to the image

Describe the job before you name a sound. "A sparse piano line" describes an instrument and a texture. It doesn't say where the music sits relative to what's on screen, and that's the part the editor, the sound team and the composer all need.

Three relationships are useful, and each fits in a sentence.

Music can confirm: it agrees with the image and moves with it. In the hall, the score coming in as the volunteer looks up belongs here — the arrival and the music land together, and the moment reads as one event.

Music can anticipate: it arrives before the thing it describes. Music starting while the chairs are still being carried tells the audience people are coming before any of them appear. Nothing on screen says it. The sound does.

Music can resist: it disagrees. A warm, untroubled score over a room that isn't coming together pulls against the picture, and the friction is the point. Resistance isn't a mistake or a mood gone wrong. It's a relationship you either want or you don't.

Naming the relationship is what lets the note survive a change of track. If the paragraph says the music enters with her look up and stays around the room, a different piece of music can still do that job. If it says "uplifting," nothing in it can be executed or argued with.

That's also what a reference track is for. A named song communicates a function quickly — this is the kind of thing that would do this here — and it's a shortcut for the people reading, nothing more. A reference in a treatment describes direction. It doesn't establish that the production can acquire, afford or use that track. A paragraph whose whole meaning disappears when the reference does was never saying much in the first place.

One thing not to write: a claim that a genre or an instrument guarantees a response. "Minor-key strings will make the audience uneasy" is a prediction about strangers, and a treatment isn't the place to make it.

Mark the changes that carry the scene

Most of a sound approach is decisions about change: what arrives, what recedes, what stops, what returns, and what the audience receives because of it. A passage with no change in it is a texture. Texture can carry twenty seconds. It rarely carries two minutes.

The change that gets fumbled most is stopping the music. Dropping the score is not the same as removing sound. When the music goes, the room stays: the door, the chair legs, the room tone, traffic outside, the hum you'd hear if you stood there. A note that says only "cut to silence" leaves a collaborator to guess which of those survives, and two collaborators will guess differently. One will mute everything, one will keep the room, and you'll get two different scenes from one line.

"Silence" is a word to use carefully for that reason. In a small hall with the doors shut, silence is still a room sound. If you want the score out and the room in, write that: no music, just the chairs and the door. If you want the floor to genuinely drop out — no room, no tone, nothing — that's a strong, strange effect and worth naming as such, because it will read as strange to an audience too. Either way, say which you mean.

The version developed below has exactly one change in it: the score enters, once, at the arrival. Everything before that is world sound. That isn't timidity. One well-placed entrance usually does more than four cues spread across the same passage, because a change only reads as a change when there's a stretch of something else in front of it.

Make room for the decisive information

At some point in most commercials there's something the audience has to receive: a line of dialogue, a name, a first line of voiceover, the sound of a product doing what it does, a visual discovery that lands like an event. Whatever it is, the sound approach should say it's the priority — in words, before it says anything else about that stretch of the film.

Say it as a dramatic priority, not a technical setting. "The line is what we're following; the score is underneath it" is a sentence a composer can work with and a client can understand. Numbers belong to the mix, later, with the film in front of everyone.

There's a test for finding the priority that doubles as a test of the paragraph. Read the passage as though every layer were playing at once, at steady emphasis. What's lost? If the answer is "the line," then the line is the priority and the paragraph needs to say what gives way for it. If the answer is "the relationship between her look and the music," then that entrance is the priority, and protecting it usually means keeping competing cues out of the seconds either side of it.

Not every beat needs a musical event. A scene with three cues isn't more thoughtfully scored than a scene with one; it's busier. If you can't say what a cue adds — what we notice because it's there — cut it and see whether anything disappears. Often nothing does.

If the community hall scene carried a line, the score's entrance would have to be placed relative to it, and the paragraph would say which one we're following for those two seconds. The scene as proposed has no line. The tear and the look do that work, which is why the sound note spends its one change there.

A community cinema opening, two ways

Here's the scene, fixed and complete. A volunteer unlocks a community hall and sets out chairs. Keys, a door, chair legs on the floor, the hall's own hollowness — and no score announcing that this is going to go well. The first visitor arrives. A ticket tears. The volunteer looks up. Then the music enters, around the room sound, which continues underneath it.

That's one version. The other is the same scene with one difference: the music begins during the setup, while the chairs are still being carried.

Each version buys something different, and it's worth being clear about what each costs.

In the delayed version, the passage's single change is spent on the arrival. The work at the start is un-scored, so the entrance coincides with the moment the room's purpose actually begins. The cost is anticipation: for however long the setup runs, nothing in the music tells the audience that anyone is coming.

In the early version, they know before the visitor appears. The gathering is announced while it's still a plan. The cost is that the arrival no longer has a musical change available to it, because the music was already playing. If you want that moment to register in the sound, it has to be carried by the picture and by something in the room — the tear, the look — or by a change inside the music already running: a part dropping out, a new instrument stepping forward. If nothing inside it changes, the arrival happens on a flat surface. We see it, but the sound doesn't mark it.

Which is right depends on what the film wants the audience to anticipate. If the scene is about the work, keep the setup bare and spend the change on the arrival. If the scene is about the wait, start the music early and give the audience something to wait inside. There's no rule that later is better. There's only the question of where you want attention pointed in the first fifteen seconds.

There's a third possibility worth saying out loud: no music at all. The scene can run on world sound from beginning to end, and the tear still lands, because the film decided to make it distinct. That's what dropping music without dropping sound looks like in practice — the room stays, doing the work.

The scene, the two versions and any music described in them are proposed teaching material. No track has been selected, recorded, licensed, edited or mixed.

Two limits are worth stating plainly. The method here is reasoning about how sound choices behave, not a report from a finished commercial: a sound designer's or composer's own breakdown of a commercial's sound-image decision hasn't been gathered for it, and nobody has been tested on any of it. And the fact that treatments commonly carry a sound and music section tells us the section exists. It doesn't tell us that the approach inside it works. Treat what follows as worth trying rather than demonstrated.

The paragraph you hand over

Give the sound team dramatic priorities and let them build the construction. The paragraph below says what we hear, whose attention we're near, what changes, and what stays audible around the change. That's the whole note — no genre adjectives, no stack of layers, nothing to decode.

Open inside the hall while it's still being made ready. We hear the keys, the door, the legs of the chairs on the floor, the hall's own hollowness — and no score. We stay near the volunteer's hearing, close to where the work is happening, and outside her head. Nothing announces that this will go well; the work says it. When the first visitor comes in, the room keeps going. The ticket tears, and we hear it clearly, because it's the first sound in the passage that isn't preparation. The volunteer looks up. As her head lifts, music enters around the room sound rather than over it — the room stays audible underneath while the score plays. That entrance is the only change in the whole passage, and it's spent on the arrival. Everything before it is world sound, designed to be heard. Everything after it is the same room, with music around it.

Frequently asked questions

What four questions should a sound and music approach answer?

Which sounds put us in the place and which ones the film chooses to notice; whose attention we are near; what the music is doing next to the image - agreeing, anticipating, or resisting; and what changes, and when.

What is the difference between world sound and designed emphasis?

World sound is whatever the space would produce whether or not anyone recorded it: a door, keys, chair legs, the hollowness of an empty hall. Designed emphasis is the film's choice to make one of those sounds distinct. A list of only world sound is a location note; a list of only emphases has no world for them to sit in.

How does the piece distinguish external and internal diegetic sound?

It uses the source of the sound, not whether every character hears it. External diegetic sound has its source out in the film's world; internal diegetic sound exists inside a character's mind, such as a remembered voice or a tune someone cannot shake. Source and audibility are separate questions. Music has no source in the room, so a score entering a hall does not become something the character hears.

What should a note about stopping music or using silence say?

Dropping the score is not the same as removing sound. When the music goes, the room can stay: the door, chair legs, room tone, traffic, the hum you would hear standing there. If you want the score out and the room in, write that. If you want the floor to genuinely drop out, name that as a strong, strange effect. Otherwise collaborators will guess differently.

What does starting music early buy compared with waiting?

Starting music during the setup announces that people are coming before any appear; the cost is that the arrival no longer has a musical change available unless something inside the running music changes. Waiting keeps the setup un-scored and spends the passage's single change on the arrival; the cost is that nothing in the music anticipates the visitor. No music at all is also possible, and the tear can still land as designed world sound. The scene and music described are proposed teaching material; no track has been selected, recorded, licensed, edited, or mixed.