ModsJava
Note Block Master
Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.
This mod adds several features to compose note block songs as a new advanced note block:
- Change the note range from C1 to A#7
- Set a delay of Subticks, 5ms each to a max. of 95ms (19 Subticks by default)
- Change the volume from 100% to 5%, removes decay per distance
- Add sustain to the note, causing it to play longer (alpha feature)
Multiple items for quality of life while composing are added
Items
- Advanced Note Block - the main block of the mod. A vanilla note block can be directly converted by right clicking it while holding a tuner and having 3 gold nuggets in your inventory
- Tuners - Render see through information in the world up to 16 blocks away while holding
- Note Tuner - set the key from C1 to A#7 (F#3 to F#6 by default)
- Tempo Tuner - set the delay from 0 to 19
- Add and Set mode - In set mode: If there is space above a clicked non-note block, an advanced note block will be placed in the specified state from your inventory. Also looks at a second tuner in offhand.
- Composers Note - calculates the delay for the next block based on set bpm. You can also set the current beat. If held in offhand with a Tempo Tuner in main hand will cause the clicked note block to be delayed according to current beat. Places repeaters based on the time between the current and next beat if held in main hand.
- Cores - Add them to a placed advanced note block by right clicking. Can only be modified with a tuner
- Mixing Core - set the volume from 100% to 5%. Range 64 blocks, no decay
- Sustaining Core - set a sustain level. Sound extension depends on the instrument
You can adjust min and max note as well as the duration of a subtick in the startup config.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.1, 1.21.3, 1.21.2
- 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 CurseForge — 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.
File checked by MCModsHub
- Ships as noteblockmaster-0.4.0.jar — drop this file into the mods folder
- Download size: 80 KB
- Download link checked 28 Sept 2026 — working
These come from our own check of the pack file, not from the source page.