# **mumuse**
[](https://docs.rs/mumuse/latest/mumuse/)
[](https://crates.io/crates/mumuse)
A Rust small music theory library, featuring:
- Elementary operations with notes and chords
- Building chords from scales degrees
- Scale modes
- Sequence building with streams
- Midi real time playing of streams
This is still in active development, things **will** brake.
```rust
let mut stream: Stream = Stream::new();
let mut conn_out = midi::get_output_connection("Virtual Midi Bus 1".to_string());
// Constructing event stream
let notes = ["A3", "B3", "C4", "D4", "A3", "B3", "C4", "D4"];
let mut time = Time::new(1, 4, 1);
let duration = Duration::new(16, 1); // 16th notes
for n in notes {
let note = Note::try_from(n).unwrap();
stream.add_note(note, time, duration);
time = time + duration;
}
// Real time play of events
stream.play(&mut conn_out, 120.0, 4); // midi_connection, beat per minute, beats per bar
```
## **How to use**
Add mumuse lib crate to your `Cargo.toml` file.
```toml
mumuse = "version"
```
Browse the `examples/` folder in order to see capabilities of the library.
Also, you can check the [documentation](https://docs.rs/mumuse/latest/mumuse/).
