https://github.com/krmax44/midy

A super-minimalistic MIDI library.
https://github.com/krmax44/midy

midi web-midi

Last synced: about 2 months ago
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A super-minimalistic MIDI library.

• Host: GitHub
• URL: https://github.com/krmax44/midy
• Owner: krmax44
• License: mit
• Created: 2020-02-25T18:21:14.000Z (almost 5 years ago)
• Default Branch: master
• Last Pushed: 2020-09-12T12:04:11.000Z (over 4 years ago)
• Last Synced: 2024-09-30T08:36:21.760Z (3 months ago)
• Topics: midi, web-midi
• Language: TypeScript
• Size: 160 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Midy

[![GitHub CI Status](https://img.shields.io/github/workflow/status/krmax44/midy/build/master)](https://github.com/krmax44/midy/actions?query=workflow%3Abuild)

[![Code Coverage](https://img.shields.io/codecov/c/github/krmax44/midy)](https://codecov.io/gh/krmax44/midy)

[![bundle size](https://img.shields.io/bundlephobia/minzip/midy)](https://bundlephobia.com/result?p=midy)

[![npm version](https://img.shields.io/npm/v/midy)](https://www.npmjs.com/package/midy)

A super-minimalistic MIDI library.

## Installation

```bash

yarn add midy

# or using npm

npm i midy

```

## Example

```js

import Midy from 'midy';

const midy = new Midy();

if (await midy.requestAccess()) {

	midy.on('noteDown', (note, channel, velocity) => {

		console.log('A key was pressed!', note, channel, velocity);

	});

}

```

## Methods

| Method name     | Parameters                               | Description                                                                        | Type               |

| --------------- | ---------------------------------------- | ---------------------------------------------------------------------------------- | ------------------ |

| `requestAccess` | _none_                                   | Request access to the Web MIDI API.                                                | `Promise` |

| `on`            | event name `string`, listener `function` | Register an event listener. See [Houk API](https://github.com/krmax44/houk/#api)   | `void`             |

| `off`           | event name `string`, listener `function` | Unregister an event listener. See [Houk API](https://github.com/krmax44/houk/#api) | `boolean`          |

## Events

| Event name    | Description                       | Parameters                                                   |

| ------------- | --------------------------------- | ------------------------------------------------------------ |

| `noteUp`      | Triggered once a key is released. | MIDI note `number`, MIDI channel `number`, velocity `number` |

| `noteDown`    | Triggered once a key is pressed.  | MIDI note `number`, MIDI channel `number`, velocity `number` |

| `midiMessage` | Raw MIDI events.                  | MIDI event `MIDIMessageEvent`                                |

## Properties

| Property name | Description  | Type            |

| ------------- | ------------ | --------------- |

| `access`      | MIDI access  | `MIDIAccess`    |

| `inputs`      | MIDI inputs  | `MIDIInputMap`  |

| `outputs`     | MIDI outputs | `MIDIOutputMap` |

| `state`       | Access state | `'none'         | 'pending' | 'granted' | 'denied'` |