Additionality
by TheYoungSeth
Additionality is a NeoForge utility mod for Minecraft 1.21.4 that adds quality-of-life sorting and a Portable Jukebox that plays music discs anywhere.
What it does
The Portable Jukebox stores music discs and plays them wherever a player carries it, which makes music on long adventures possible without placing a block. Discs can be kept in its storage, and the mod works with modded music discs as well as vanilla ones.
Beyond the jukebox, the mod adds sorting tools and other small inventory conveniences, along with a Custom Effect Beacon and an OmniBeacon. Additional content such as a Curios integration for the Portable Jukebox is also described by the author, and the mod is still listed as a work in progress.
Additionality needs NeoForge and is published only for 1.21.4. It runs on the client and on the server, so both sides need it. The code is open source under the GNU General Public License v3.0 only, and the source code and issue tracker are public.
Key features
Portable Jukebox
A jukebox item that carries music discs and plays them from the player's own inventory, without needing a block placed in the world.
Disc storage
The jukebox keeps several discs in its storage, so a player can switch tracks without opening a separate container.
Sorting tools
Quality-of-life sorting features reorganize items in storage and inventory screens to save manual effort.
Custom Effect Beacon
A beacon variant that applies custom status effects, adding options beyond the vanilla beacon.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Long-distance travel
Players exploring far from base can keep music playing while they walk, dig or fight.
Modded music packs
Servers that add custom music discs from other mods can use the jukebox to play them, since the author states it works with modded discs.
Who it’s for: Players who run NeoForge 1.21.4 and want a portable way to listen to music discs, and server owners who want sorting conveniences on a shared world.
How it compares
Dash's Custom Music Discs Mod is a NeoForge mod for 1.21.1, under All rights reserved and not open source, with the same client and server environment as Additionality. Music Discs Mod is also a NeoForge option for 1.21.4 with a client and server environment, under All rights reserved and not open source. Additionality differs from both by being open source under the GNU General Public License v3.0 only.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Additionality | NeoForge | 1.21.4 | Client and server | 2025-02-10 |
| Dash's Custom Music Discs Mod | NeoForge | 1.21.1 | Client and server | 2026-06-05 |
| Music Discs Mod | NeoForge | 1.21.4 | Client and server | 2025-08-06 |
Questions
Does Additionality need NeoForge?
Does Additionality have to be installed on the server?
Can Additionality play modded music discs?
In the catalog
Additionality is one of 36,990 Utility mods on ModsFinder, and one of 13,477 Utility mods for NeoForge. 17,979 mods support Minecraft 1.21.4.
More from TheYoungSeth
Similar mods
Official listing
- Modrinth page
- modrinth.com/mod/additionality
- Owner
- TheYoungSeth
- Published
- 2025-01-14
- Updated on Modrinth
- 2025-02-10
- Facts verified
- 2026-10-15