Belfast, UK
Unlocking Harmonicity
We build tools that let you hear and shape harmonicity—helping sounds come together, making individual sounds clearer, giving each element space, and restoring a more natural dynamic balance. HRF is the first. Let your music breathe.
120+ sign-ups · 60+ trials · artists, producers & engineers
What is harmonicity
Harmony, the heartbeat of music.
Every sound is built from a fundamental and the harmonics that rise above it. The way those harmonics relate shapes how a sound feels—whether elements glue together or pull apart, whether they have space or mask one another, and whether their energy feels naturally balanced or crowded. Harmonicity lies at the heart of all three. Shaping harmonicity is Lú’s life’s work—and we think you’ll love discovering what it can do for your sound.
We create products that work with harmonicity itself—helping separate sounds connect more naturally, strengthening the internal coherence of individual sounds, giving each element its own space, and bringing greater balance to the way energy moves through a sound.
And we want to make the ideas behind the technology just as accessible as the tools themselves. This is not technology for technology’s sake. It is technology designed to bring harmony back into the human experience of making and hearing music.
Flagship product
HRF — Harmonic Reinforcement Filter
Let your music breathe.
With Lu’s patent-pending design, HRF reduces masking between competing harmonic content, creating greater space, clarity and separation—even within the densest mixes.
By allowing the full shape and energy of a sound to emerge more naturally—from its body and detail through to its peaks and transients—HRF can also transform even the most flattened, brick-like dynamics into something with greater movement, punch and definition. The result is a more balanced, natural and expressive dynamic range.
HRF also emphasises the shared harmonics between sounds, helping instruments sit together with greater cohesion and musicality. On individual sound sources, it works in the same way—refining and polishing each track while preserving its character and bringing out more of what is already there.
More cohesion. More space. More movement. More impact.
What makes HRF unique? The approach is different: HRF works from musical pitch and harmonic relationships, using Lú's patent-pending design.
Demos
Hear it before you read about it
Switch between A, the original audio, and B, the same audio through HRF. Scrub, replay and set the level to taste.
Eyes — Patrick Patrikios
A is the original, B is the same track through HRF.
Use headphones or monitors — the differences are harmonic, and small speakers hide them.
Full channel for more demos: @LuMusicTechnology
Upcoming updates
What we are working on
We update HRF steadily as feedback comes in, and this is also where we will post our own news about what is in the making. Currently in hand:
- Window resize, minimise, maximise and full-screen
- Solo individual bands
- Delta pass
And yes — more products are on the way. Educational and community-feedback discounts are available; write to info@lumusictech.com.
FAQs
Straight answers
What does HRF do differently?+
It works from musical pitch. Rather than treating resonances by level alone, HRF follows the harmonic structure of what is playing—helping related content glue together more naturally, reducing masking so each element has more space, and redistributing energy for a more balanced and expressive dynamic range, both within individual sounds and across complete mixes.
How long is the trial?+
The trial runs 28 days. It is fully featured and requires no payment details.
Which formats are supported?+
VST3, AU and AAX, plus a standalone application. Windows 10 or later (64-bit) and macOS 11 or later, Intel or Apple Silicon.
Something not covered? Ask us.