NoteBlockHud

NoteBlockHud turns tuning note blocks from a guessing game into a glance. Point your crosshair at any note block and a small readout appears in the top-left of your screen.

What it shows

• Pitch — the musical note name with octave, e.g. F#4, across the full note-block range F#3 → F#5.
• Note value — the raw 0–24 step, so you know exactly how many right-clicks from the bottom you are.
• Instrument — Harp, Bass, Bell, Flute, Xylophone, Pling… — read straight from the block, derived from the material underneath it.

Why

Vanilla only tells you a note block's pitch by playing it — so tuning a melody means clicking, listening, counting in your head, and hoping. NoteBlockHud puts the actual note and instrument on screen, so you can build and tune redstone music by eye, match two note blocks to the same pitch instantly, or read back a song someone else built.

Controls

• N — toggle the readout on/off. An action-bar message confirms the state.

How it's built

• Reads the note block's note and instrument blockstate properties directly from the block you're looking at — no mixins, no block-entity poking, no extra dependencies.
• Pitch naming maps note 0 to F#3 and walks the chromatic scale up to F#5 at note 24.
• The readout only appears while your crosshair is on a note block, and respects F1 (hide HUD) and open menus.

Compatibility

Minecraft 1.21.8, 1.21.9, 1.21.10, 1.21.11 — Fabric Loader 0.16+. One JAR covers all four. Pure client-side: install on your client only, works on any Fabric server, fully vanilla-compatible. Requires Fabric API.