RhythmicLights
by Avioti
RhythmicLights is a Fabric decoration mod in which lamps react to music, with a real-time audio analysis engine that drives the lighting.
What it does
Real-time FFT audio analysis reads the music and passes the frequency content to the lighting, so the lamps follow the rhythm as it plays. Twelve frequency-tuned lamps each respond to a specific band, and rhythm bulbs can be tuned and assigned to a configurable frequency channel. Vanilla redstone lamps are supported as well, so existing builds can take part in a show.
The mod includes a 10-band equalizer with presets such as Bass Heavy, Club and Concert, and a custom GUI for fine-tuning the equalizer, loops, particle effects and other settings in real time. Spatial audio applies distance-based volume falloff, and particle effects react to the beat. Client and server both need the mod, and Architectury API and Cloth Config API are required dependencies. Files are published for Fabric only, for 1.21.1, with 1.0.3 as the latest build from 2025-12-10. The mod is open source under the GNU Affero General Public License v3.0 only.
Key features
Audio-reactive lighting
Lamps and bulbs change with the frequency content of the music, using FFT analysis run in real time.
Twelve frequency-tuned lamps
Each of twelve lamps responds to its own frequency band, and bulbs can be assigned to a channel.
10-band equalizer
The equalizer offers presets named Bass Heavy, Club and Concert, and its bands can be adjusted in a custom GUI.
Spatial audio and particles
Volume falls off with distance, and particle effects pulse with the beat of the music.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 2
Use cases
Music light shows
Builders can set up rooms and stages where the lighting follows a playing track.
Who it’s for: Builders and server owners who want music-driven lighting in decorative builds. Players who have photosensitive epilepsy should take care, because RhythmicLights includes flashing lights and fast shifts in color.
How it compares
SejioMedia is a Fabric mod for 1.21, open source under the MIT License, and runs on client and server. Sculk Radio is a Fabric mod for 1.21.9 – 26.3 that is open source under the Apache License 2.0 and is server-side only, so players need nothing installed. RhythmicLights targets 1.21.1 alone and is licensed under the GNU Affero General Public License v3.0 only.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| RhythmicLights | Fabric | 1.21.1 | Client and server | 2025-12-10 |
| SejioMedia | Fabric | 1.21 | Client and server | 2026-05-06 |
| Sculk Radio | Fabric | 1.21.9 – 26.3 | Server-side only | 2026-09-18 |
Questions
Does RhythmicLights need Architectury API?
Does the server need RhythmicLights?
Are there photosensitivity warnings?
In the catalog
RhythmicLights is one of 12,078 Decoration mods on ModsFinder, and one of 6,982 Decoration mods for Fabric. 32,366 mods support Minecraft 1.21.1.
More from Avioti
Similar mods
What the author says
This mod contains flashing lights and rapid color changes that may affect those with photosensitive epilepsy. A Minecraft mod that brings real-time audio visualization to the game. Synchronize in-game lighting and particle effects with music discs or custom audio from YouTube, SoundCloud, and direct URLs.
Official listing
- Modrinth page
- modrinth.com/mod/rhythmiclights
- Owner
- Avioti
- Published
- 2025-12-08
- Updated on Modrinth
- 2025-12-10
- Facts verified
- 2026-10-15