Studio Nine Lab.

Tempera

Tempera is a frame for the wall that paints along to the music in the room. It takes its colours from the album that is playing and can listen through a small microphone to move in time with the beat. Every song changes the picture. Play the same album twice and you still won’t get the same painting.

Status
In progress
Started
Jul 2026
Disciplines
Generative design, Interaction design, Hardware, Product
Built with
Spotify Web API, WebGL, Node.js, Raspberry Pi, E-ink (testing)
Why

Music changes the mood of a house more than anything else in it, several times a day, and the walls never notice. We wanted one thing in the room that did. Something closer to a painting than a screen, that you would choose to hang.

How it works

It started with a weekend question. What would a song look like if we let it onto the wall instead of a phone’s lock screen? The first version was a browser page on a studio Mac. It set the track title in big serif type over a slow wash of colour, and we expected it to last a weekend. It is still running.

The colour comes from the album sleeve. Tempera pulls a palette from the artwork and builds a moving field out of it. A Sunday jazz record fills the frame with browns and creams, while a club track turns it acid. There are five ways of drawing that field, from a soft aurora to overlapping ripples. You decide how restless it gets.

We hit a wall early. Streaming services used to tell developers a song’s tempo and mood. That data is no longer open to new projects, so the frame had to learn to listen instead. With the microphone on, it picks out the onsets, estimates the beat and pulses in time. That turned out better than the plan. It reacts to the music as it actually sounds in your kitchen, volume, chatter and all.

Living with it taught us what to leave out. No album art on screen, because the frame should feel like a painting, not a jukebox. No badges or chips. When nothing is playing it becomes a quiet clock, a thin ring that winds on through one minute and unwinds through the next. And there is a small QR code in the corner, so anyone who asks “what is this?” can open the song on their own phone.

The open question is the object itself. A matte e-ink panel looks like a print and gives off no light, but it refreshes slowly and can’t animate. A proper screen shows every movement and glows like a screen. We are testing both before we commit. In the meantime we are printing our favourite frames as small numbered editions. That is the most honest test we know of whether anyone wants the pictures.

Build log

Updated 6 Oct 2026

  1. 2 Oct 2026

    Print run 01 proofed. Three pieces chosen for the first drop.

    Latest
  2. 14 Sept 2026

    New "bars" renderer. Closer to how a song actually feels.

  3. 20 Aug 2026

    First frame running in the studio, all day, every day.

  4. 11 Jul 2026

    Started. A weekend prototype that refused to stay a weekend.

From this project

Coming to the shop.

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Coming soon Tempera No. 01, Night Drive

Tempera No. 01, Night Drive

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Coming soon Tempera No. 02, Slow Morning

Tempera No. 02, Slow Morning

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Coming soon Tempera No. 03, Encore

Tempera No. 03, Encore

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