# Dictionary
[](https://www.npmjs.com/package/tonal-dictionary)
`tonal-dictionary` contains a dictionary of musical scales and chords
This is part of [tonal](https://www.npmjs.com/package/tonal) music theory library.
**Example**
```js
// es6
import * as Dictionary from "tonal-dictionary"
// es5
const Dictionary = require("tonal-dictionary")
```
**Example**
```js
Dictionary.chord("Maj7") // => ["1P", "3M", "5P", "7M"]
```
* [Dictionary](#module_Dictionary)
* [`.scale(name)`](#module_Dictionary.scale) ⇒ Array
* [`.chord(type)`](#module_Dictionary.chord) ⇒ Array
## `Dictionary.scale(name)` ⇒ Array
A dictionary of scales: a function that given a scale name (without tonic)
returns an array of intervals
**Kind**: static method of [Dictionary](#module_Dictionary)
**Returns**: Array - intervals
| Param | Type |
| --- | --- |
| name | string |
**Example**
```js
import { scale } from "tonal-dictionary"
scale("major") // => ["1P", "2M", ...]
scale.names(); // => ["major", ...]
```
## `Dictionary.chord(type)` ⇒ Array
A dictionary of chords: a function that given a chord type
returns an array of intervals
**Kind**: static method of [Dictionary](#module_Dictionary)
**Returns**: Array - intervals
| Param | Type |
| --- | --- |
| type | string |
**Example**
```js
import { chord } from "tonal-dictionary"
chord("Maj7") // => ["1P", "3M", ...]
chord.names(); // => ["Maj3", ...]
```