Nature and matter

Koi — koi carp of light

Seven carp of light in a black pond, moving with the music.

On screen

What Koi shows

Koi sets seven glowing koi carp, white or cream with patches in two colours, swimming in a pond of ink. They dive and rise, ripple from head to tail, and swim around the cover without ever hiding behind it; a few lily pads drift by in silhouette.

Their passing near the surface leaves ripples that bend their reflection, a drop falls on every beat, and on the drop all seven gather in a circle around the cover. A calm world for deep house, downtempo, electronic jazz and lo-fi.

At a glance

Koi at a glance

Family: Nature and matter
Energy: moderate
Movement: moderate
Best tempo: 70 to 120 BPM
Music: deep house, downtempo, electronic jazz, lo-fi
Plan: Included in the free plan
Computer: Runs on any recent computer

Best for

Where it shines

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In the same spirit

More worlds from the “Nature and matter” family, and those with the same energy.

See every world

Frequently asked

Questions about Koi

What music does Koi suit best?

Koi is designed for deep house, downtempo, electronic jazz, lo-fi, ideally between 70 and 120 BPM. Halofloor picks it on its own when a song suits it, and you can also force it from the console.

Is Koi free?

Koi is part of Halofloor’s free plan, with no time limit and no credit card. Just open the console and start your music.

Is Koi a video?

Every frame of Koi is computed live by your computer from the song’s analysis: tempo, energy, build-ups and drops. It never repeats from one song to the next.

What kind of TV do I need?

Any TV with an HDMI input works, smart or not. The computer renders the visuals and the TV displays them, with no app to install.

Put Koi on your screen

Open the console, pick your music: Halofloor does the rest.

Start for free

No sign-up, no credit card