Set music mode
The Set music mode action turns on music mode on Magic Home lights that have a built-in microphone, so the light reacts to sound. It is supported on Controller RGB with MIC (0x08), Addressable v2 (0xA2), and Addressable v3 (0xA3) devices.
You can tune how sensitive the microphone is, set the brightness, and pick the foreground and background colors the effect uses.
Using this action from the user interface
If you prefer building automations and scripts visually, Home Assistant walks you through this action step by step. You pick what to target, tweak a few options, and save. No YAML knowledge required.
To set music mode from an automation or a script:
- Go to Settings > Automations & scenes.
- Open an existing automation or script, or select Create automation > Create new automation.
- If you’re setting up a new automation, add a trigger in the When section. Scripts don’t need a trigger. They run when something else calls them.
- In the Then do section, select Add action.
- From the search box, search for and select Magic Home: Set music mode.
- Under Targets, choose the lights to apply music mode to.
- Set the options you want to change.
- Select Save.
Targets of the action
This action requires a target. The target is the object of the action. You can point the action at a single entityAn entity represents a sensor, actor, or function in Home Assistant. Entities are used to monitor physical properties or to control other entities. An entity is usually part of a device or a service. [Learn more], a device, an area, a floor, or a label, and Home Assistant will run the action on every matching light entity behind that target.
-
Entity: one specific light entity, such as
light.living_room. - Device: every light entity that belongs to a device.
- Area: every light entity in a room or area.
- Floor: every light entity on a floor.
- Label: every light entity that shares a label.
You can also select different target types in one action. For example, you can add a specific entity and an area as targets in the same action to run the action on both of them at once.
Options in the UI
Using this action in YAML
If you work directly in YAML, or you want to know exactly what Home Assistant does under the hood, this section has the technical reference. It lists the field names you use in YAML, their types, and which ones are required.
In YAML, refer to this action as flux_led.set_music_mode. A basic example looks like this:
action: flux_led.set_music_mode
target:
entity_id: light.addressable_v3_8e2f7f
data:
sensitivity: 100
brightness: 100
effect: 2
foreground_color: [255, 0, 0]
background_color: [0, 255, 0]
Options in YAML
Try it yourself
Ready to test this? Open Developer tools > Actions, search for this action, fill in the fields, and select Perform action. You see what happens on your actual entitiesAn entity represents a sensor, actor, or function in Home Assistant. Entities are used to monitor physical properties or to control other entities. An entity is usually part of a device or a service. [Learn more] without writing a line of YAML.
More examples
Real scenarios where this action shows up in automations and scripts. Copy any example and adapt it to your setup.
You don’t need to edit YAML to use these examples. Copy a YAML snippet from this page, open the automation editor in Home Assistant, and press Ctrl+V (or Cmd+V on Mac). Home Assistant automatically converts the pasted YAML into the visual editor format, whether it’s a full automation, a single trigger, a condition, or an action.
Automation: activate music mode at a moderate sensitivity when a party scene is triggered
When a party scene is activated, enable music mode at moderate sensitivity and brightness rather than full power, so the lights react to music without running at maximum draw the entire evening.
-
Trigger: Scene activated (
scene.party) - Action: Magic Home: Set music mode
YAML example for activating music mode using moderate settings
alias: "Enable music mode at moderate power when party scene activates"
triggers:
- trigger: state
entity_id: scene.party
actions:
- action: flux_led.set_music_mode
target:
entity_id: light.addressable_v3_living_room
data:
sensitivity: 60
brightness: 50
effect: 2
light_screen: false
foreground_color: [0, 100, 255]
background_color: [0, 0, 0]
Still stuck?
The Home Assistant community is quick to help: join Discord for real-time chat, post on the community forum with the action you’re calling and what you expected to happen, or share on our subreddit /r/homeassistant.
AI assistants like ChatGPT or Claude can also explain actions or suggest the right one when you describe what you want in plain language.
Related actions
These actions work well alongside this one:
-
Set custom effect: Sets a custom light effect on a Magic Home light.
-
Set zones: Sets strip zones for Addressable v3 controllers.