Your tracks are fighting. Harmonia makes room.

Harmonia is an EQ for mixing, not just a curve editor. It has 36 dynamic parametric bands — bell, shelf, notch, tilt, band-pass, all-pass and 6–48 dB/octave high- and low-pass — each with its own dynamics (duck or lift when the energy rises above its own average, Peak or RMS detection, adjustable knee) and its own Stereo, Mid, Side, Left or Right placement. If you want, the bands run in linear phase.

The real difference is the ecosystem. Every Harmonia instance in the session publishes its spectrum to a shared bus (up to 32 instances), and the others see it: YIELD pulls this track down band by band exactly where the others have energy, up to 12 dB; pick which tracks to make room for, or press VS ALL. It is a spectral sidechain with no routing at all. The STAGE shows the whole session as a stage — drag a track to place it in the stereo field; the TRACKS panel controls every instance from one place; PUMP ducks the track on another track’s transients, and MONO FOCUS collapses the entire session to mono with one click.

Harmonia 1.1 adds HEARD, a meter in TRACKS that says for each track whether a listener can still hear it inside the mix — clear, fighting or buried — on studio monitors, a laptop or a phone, and which track is covering it. It only listens and changes nothing. It is a hint, not a verdict: it has been checked against a simple energy rule, not against listeners, so trust your ears.

The spectral engine does the cleaning: REIN finds resonances and pulls them down dynamically, recognising a note’s harmonics so it leaves them alone; CLEAN removes mud between 120 and 700 Hz; SURFACE uses a masking model to lift back what is buried — by other tracks too, because it reads the bus; GLOW adds brightness only where the sound is dull; SCULPT lets you paint a curve by hand straight onto the analyser. Then CHARACTER (PURE to CONSOLE to VELVET, 2× oversampled), the one-knob GLUE compressor, auto-gain, parallel mix, A/B, and low-end alignment across instances (a delay of up to ±5 ms plus an all-pass).

Zero latency until you engage a spectral layer; from then on, one analysis window (43–46 ms), reported to the DAW. Bypass — the DAW’s and the plug-in’s own — is a latency-matched crossfade: it never clicks and never moves the track in time. VST3, AU and CLAP for macOS (Apple Silicon and Intel), Windows and Linux.