

Provides a framework for custom background music to be used by both mods and map makers.
Also adds support for custom loop points in sounds.
The BGM block can be used to set the BGM for a specific bounding area
The Boss Spawner block is a helper block that can be used to spawn an enemy and play a specific BGM while the entity is alive.
- the entity will be despawned and the block reset if a player leaves the activation area
- the block is only active while powered by redstone
- the block will output a comparator strength of 7 when the boss is spawned and 15 when it is killed
- turning the redstone signal off resets the block so it can be used again
The Entity Tester block is a helper block to test for entities inside a bounding area
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.4
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
Verified by MCModsHub
- Ships as custombgm-NeoForge-1.21.4-2.0.1.jar — drop this file into the mods folder
- Download size: 406 KB
- Download link checked 31 Aug 2026 — working
These come from our own check of the pack file, not from the source page.