MidiPlayer

A client-side Fabric mod for Minecraft 1.21.11 that plays MIDI files on surrounding note blocks automatically.

↑Showcase video (in Japanese)

Features

Plays MIDI files on surrounding note blocks in real-time.
Automatically tunes nearby note blocks with a smart auto-tuning algorithm.
Provides a vanilla-styled configuration screen (default key is M, configurable in controls settings).

The mod maps MIDI instrument categories to Minecraft note block instruments in the following preferred order:

MIDI Category	Preferred Note Block Instrument (Preferred Order)	Target Sound in Minecraft
PIANO	`HARP`, `PLING`	Piano/Harp
CHROMATIC	`XYLOPHONE`, `IRON_XYLOPHONE`, `CHIME`, `BELL`, `HARP`	Melodic Percussion
ORGAN	`PLING`, `BIT`, `HARP`	Electronic Organ
GUITAR	`GUITAR`, `BANJO`, `HARP`	Plucked Strings
BASS	`BASS`, `DIDGERIDOO`, `HARP`	Bass Lines
STRINGS / ENSEMBLE	`HARP`, `PLING`	String Section
BRASS	`FLUTE`, `DIDGERIDOO`, `HARP`	Horns
REED / PIPE	`FLUTE`, `HARP`	Woodwinds
SYNTH_LEAD	`BIT`, `PLING`, `HARP`	Synth Lead
SYNTH_PAD	`PLING`, `BIT`, `HARP`	Synth Pad
SYNTH_SFX / SFX	`BIT`, `HARP`	Synth SFX
ETHNIC	`BANJO`, `DIDGERIDOO`, `HARP`	World Folk Instruments
PERCUSSIVE	`COW_BELL`, `XYLOPHONE`, `HARP`	Percussive Hits
DRUMS	`BASEDRUM`, `SNARE`, `HAT`	Drums (Non-pitched)

This project is licensed under the MIT License.