Theatrium Music Visualizer setup guide

Get Theatrium Music Visualizer

Download Theatrium Music Visualizer from the App Store on your Apple TV and open it.

Choose your music

Open Settings › Now Playing and pick a source. Apple Music needs no setup and shows whatever is playing. For Last.fm, enter your username. For Sonos, let it find the speakers on your network and pick your room. For Spotify (Premium needed), open Spotify on your phone and choose Theatrium Visualizer in its device list; the music then plays on your Apple TV.

Add your lights

Open Settings › Light Groups and set each Apple Home light to Main or Accent. Main lights take the first color, Accent lights the second. No connected lights? Skip this, the on-screen visuals stand on their own.

Pick your visuals

Open Settings › Visualizations and turn looks on or off. At least one stays on, and the ones you keep rotate as you play.

Play, then tune it on screen

Start the music and step into the full-screen visual. Press your remote to bring up the on-screen controls, then Adjust to set the color theme, Lighting Sync, brightness and color, or switch the visual. More on both below.

Theatrium Music Visualizer Settings screen, Light Groups: each light set to Main or Accent — **Light Groups**Assign each Apple Home light to Main or Accent. That is all the lights need.

Change the color theme

While a visual plays, press the remote to show the controls, then open Adjust.
Select Theme to step through the color themes. Each one recolors the screen and your lights together.
Themes are Album Art (colors drawn from the cover), plus Sunset, Ocean, Neon, Forest, Aurora, Candy, Fire & Ice and Royal. A named theme gives each track a fresh pair of colors from that family.
Adjust also holds Lighting Sync, Brightness and Color strength.

Switch the visual

Bring up the controls and open the visuals menu to jump to another look, or leave it on auto to let them rotate.
To set which looks are in the rotation, open Settings › Visualizations and turn each on or off. At least one stays on.
Every look reacts to the music, and many are built around your own album art.

What you need

An Apple TV running tvOS 18 or later.
Music from Apple Music, Last.fm, Sonos or Spotify.
For the lights: Apple Home connected lights. Optional, the visuals work on their own.
Free to try, with three visualizations. Aurora, Silk and Lava Lamp are included. A one-time purchase unlocks every other visualization and the named color palettes. No account to make.

If something is not right

Lights not changing: check they are in the same Apple Home as this Apple TV, set to Main or Accent, and that Lighting Sync is on in Adjust.
Colors look steady: that is expected. The lights hold each track’s two colors and change with the song, they do not flash to the beat.
No Sonos speakers found: they must be on the same network. Tap Search Again in Now Playing.
Nothing playing shows: for Apple Music, start playback on the Apple TV; for Last.fm, check the username; for Sonos, pick the right room; for Spotify, choose Theatrium Visualizer in the Spotify app’s device list.

Set up Theatrium Music Visualizer