Midi Toolkit for Rust

A library for ultra high performance MIDI operations, designed for black MIDI.

I wrote this library as my first ever Rust project, and it grew into a fairly capable MIDI utility crate. The current API direction is to use extension traits from midi_toolkit::prelude::* instead of the old pipe! macro.

This crate still requires nightly Rust because its iterator pipeline internals are coroutine-based.

use midi_toolkit::{io::MIDIFile, prelude::*};

let file = MIDIFile::open("example.mid", None)?;
let merged = file.iter_all_tracks().merge_all().unwrap_items();

The pipe! macro remains available for compatibility, but it is deprecated.

See the midi-toolkit/examples folder for some examples of how to use the library. The player example is Windows-only at runtime and depends on the external kdmapi backend; outside that environment it compiles to a stub so the crate still checks cleanly under --all-features.