How to Create Tension With Music: Lessons From Horror Films

As a genre, horror offers a masterclass in musical tension. Long before a door creaks open or something stirs in the shadows, the score has already put audiences on edge. From Bernard Herrmann’s piercing strings in Psycho to the insistent two-note motif of Jaws, horror composers are skilled at making listeners feel like something is wrong, even when nothing has happened yet.

The secret lies in the way music plays with expectation. Unresolved harmonies create unease, repeating patterns build anticipation and deep drones tap into something instinctively unsettling. A sudden drop into silence can be just as effective as a crescendo, leaving audiences waiting for the inevitable.

These techniques aren’t just for horror films. They can make a true-crime documentary more gripping, give a trailer a sense of impending danger or turn a product reveal into a moment of high drama. Even a short social video can benefit from a well-placed musical sting or a slow-building sense of anticipation.

In this guide, we’ll break down the techniques behind some of horror’s most memorable scores, explore how tto put them to work across different types of content and share practical tips for getting the balance of tension and release just right.

Dissonance

In The Shining, Stanley Kubrick uses Krzysztof Penderecki’s ‘Threnody to the Victims of Hiroshima’ to create an atmosphere of mounting dread. Its shrill string clusters, unconventional harmonies and experimental orchestration make the music feel unpredictable, unsettling audiences before the action unfolds. Rather than relying on a conventional melody, Penderecki pushes the boundaries of what orchestral instruments can do, using extreme registers, unusual playing techniques and dense layers of sound to create something that feels profoundly unnatural.

This is the power of dissonance. When notes clash instead of resolving into familiar harmonies, the result can feel unstable and unresolved. Atonality takes this further, moving away from a conventional tonal centre to create music that resists familiar patterns and expectations. Combined with rising pitch, irregular rhythms and increasingly dense arrangements, these techniques can leave audiences anticipating a resolution that never quite arrives.

Where to use it: Dissonance and atonality can bring an edge to thriller drama, true-crime documentaries and investigative films, particularly when the music needs to suggest that something isn’t quite right. For brands, experimental orchestration can introduce an unexpected twist in a campaign, disrupt an otherwise familiar soundscape or add a sense of unease to a Halloween reveal.

When exploring how to create tension with music, start with the emotional effect you want to achieve. A subtle clash between two notes might be enough to create intrigue, while a more abrasive, experimental arrangement can make a moment feel genuinely threatening. You don’t always need to go full horror score to make an audience feel uncomfortable.

Ostinato & Repetition

Sometimes, the simplest musical idea is the most effective. The two-note motif in John Williams’ Jaws score has become synonymous with impending danger. Its relentless repetition suggests a threat moving closer, even when the shark is nowhere to be seen. Similarly, John Carpenter’s Halloween theme uses a repeating, asymmetrical piano pattern to create an unnerving sense of inevitability.

These scores demonstrate how repetition can turn a small musical phrase into a powerful storytelling device. An ostinato – a short pattern repeated throughout a piece – gives the audience something familiar to latch onto, while changes in instrumentation, volume, pitch or rhythm gradually raise the stakes.

For editors wondering how to build tension with music, repetition offers a practical starting point. Find a track with a distinctive rhythmic or melodic pattern, then use changes in the picture to make each recurrence feel more significant. As the pattern continues, the audience starts to anticipate what comes next. That anticipation is where the tension lives.

Where to use it: Repeating motifs work brilliantly in trailers, countdowns, product launches and social-first content, where a short build needs to hold attention. They can also provide a consistent thread through a documentary sequence, connecting disparate scenes while signalling that a mystery is unfolding.

For shorter formats, look for music that establishes its central idea quickly. A recognisable pattern can hook viewers within seconds, making it particularly useful when creating horror music for YouTube videos or other content where the opening moments matter.

Drones, Low Frequencies & Unsettling Textures

Not all tension needs a melody. Sometimes, a sustained low note, a rumbling bass texture or a barely perceptible layer of noise can do more to unsettle an audience than an entire orchestra.

Low-frequency sounds often feel ominous because they suggest weight, scale or an approaching presence. Combine them with dissonant textures, subtle shifts in pitch or sounds that are difficult to identify, and the result can create a persistent sense of unease. Unlike a sudden musical sting, a drone can build tension gradually, keeping audiences alert without demanding their attention.

This is where atmospheric suspense music comes into its own. A sparse arrangement can leave room for dialogue, interviews and natural sound, while still giving a scene an underlying emotional charge.

Where to use it: Low drones and textured sound design are particularly effective in true crime, investigative documentaries, psychological thrillers and scenes that need to feel unsettling without becoming overtly frightening. They can also add weight to a luxury product reveal, lend scale to a cinematic brand film or create a darker atmosphere for a seasonal campaign.

When choosing tension music background for a sequence, consider how much space the picture and dialogue need. A track with a restrained low-end pulse may be more effective than a dense, heavily layered arrangement, especially when the tension needs to simmer rather than boil over.

Silence, Slow Builds and the Power of the Unexpected

One of horror’s greatest tricks is knowing when not to play music. A slow crescendo can draw audiences into a moment, making them increasingly aware that something is coming. Then, just as the tension peaks, the score cuts out. The silence leaves room for anticipation and makes whatever follows feel even more dramatic.

This is an important lesson in tension and release in music. Tension builds when the audience senses that something is unresolved; release comes when that expectation is fulfilled, disrupted or abandoned. A sudden musical hit can provide the payoff, but so can an unexpected quiet moment or a reveal that arrives without the anticipated sting.

For editors, the key is to think of music as part of the pacing, not simply a continuous layer beneath the action. Cut to a rhythmic pulse to reinforce movement, let a crescendo follow a gradual visual build, or strip everything back just before a key line of dialogue or a sudden change in the picture.

Where to use it: Slow builds are a natural fit for horror music for trailers, where every second counts and the final impact needs to land. They can also create anticipation around a product launch, intensify a documentary revelation or give a short-form video a compelling final beat.

Why not try leaving a brief gap before the reveal: even a fraction of a second can make a difference when the audience has been conditioned to expect a sound. Likewise, it pays to resist the urge to fill every quiet moment. If the picture is already doing the work, silence may be the strongest choice.

Subverting the Innocent: Lullabies, Music Boxes and Childhood Songs

For a shortcut on how to create suspense in music, there’s something deeply unsettling about hearing a familiar, innocent sound in the wrong context. Music boxes, nursery rhymes and lullabies are usually associated with comfort and childhood. In a darker setting, however, their sweetness can become strangely sinister.

Horror composers exploit this contrast by pairing delicate melodies with ominous harmonies, unsettling instrumentation or an arrangement that feels slightly off-kilter. The familiar tune draws the listener in, while the context makes it uncomfortable. The result is often more disturbing than a full-on barrage of aggressive sounds.

The technique works because the music sets up one emotional expectation and then undermines it. A gentle melody might suggest safety, only for an unexpected dissonance or a shift into a darker register to turn that reassurance on its head.

Where to use it: This contrast can be particularly effective in Halloween campaigns, dark comedy, twisted fairy-tale storytelling and brand content that plays with the unexpected. A delicate music-box motif can also give a mystery sequence an eerie, distinctive identity without relying on conventional horror clichés.

When searching for horror background music, consider whether contrast might be more effective than intensity. The creepiest choice isn’t always the loudest or most obviously frightening one. Sometimes, the music that sounds almost right is the music that stays with an audience longest.

How to Choose the Right Tension Track

Understanding these techniques is one thing; finding the right music for your edit is another. The most effective track will support the story you’re telling, the emotional response you want to provoke and the format you’re working in.

Here are a few things to consider when searching for tension and suspense music:

• Start with the emotion. Are you aiming for creeping unease, mounting anticipation, psychological discomfort or an explosive shock? Each calls for a different musical approach.
• Match the pace. A slow, atmospheric drone can sustain a long investigative sequence, while a driving ostinato might be better suited to a fast-cut trailer.
• Consider the mix. If dialogue or voiceover is central, choose a track that leaves enough space for speech. Sparse arrangements can be just as effective as elaborate compositions.
• Think about the payoff. If the scene ends with a reveal, look for music that builds towards it. If you want the audience to remain unsettled, a track that avoids a satisfying resolution may be more appropriate.
• Use the format to your advantage. Horror music for reels needs to establish its mood quickly, while a longer documentary sequence may benefit from a more gradual build. Horror music for games presents a different challenge again, often requiring music that can sustain atmosphere and respond to changing gameplay rather than follow a fixed edit.
• Above all, don’t over-score. Adding more layers, louder hits and bigger crescendos doesn’t automatically create more tension. Often, restraint is what makes the decisive moment work.

Find Your Tension Soundtrack With Audio Network

The scores of Psycho, Jaws and Halloween demonstrate just how much music can contribute to storytelling. But licensing iconic film scores for commercial projects can be complicated, involving multiple rights holders and potentially significant costs.

Audio Network offers a practical alternative: a deep catalogue of high quality tension, suspense and horror music, with tracks fully cleared for commercial use. Whether you’re cutting a thriller, shaping a true-crime documentary, building anticipation around a product reveal or creating horror music for videos, you can find music designed to work with your story.

For editors seeking suspense music instrumentals, from subtle atmospheric textures to full-scale cinematic builds, our catalogue offers a range of approaches to explore. You can find music that creates a creeping sense of dread, drives a sequence towards its climax or delivers the perfect sting at just the right moment.

Ready to put these techniques into practice? Explore The Tension Code collection for music built around anticipation, unease and dramatic impact, or dive into the Horror Toolkit for darker, more unsettling sounds. Because the best tension music doesn’t just tell audiences what to feel. It makes them feel it before they even know why.

Discover More

So now you know all about creating tension with music, why not read more of our expert deep dives including why the music in The Traitors works and The Music of Widow’s Bay Explained . And don’t miss Audio Network’s guides to selecting music for short-form and long-form content, and how to find music for YouTube videos,  TikTok or Instagram.