https://github.com/dy/piano-key

Piano keys frequences
https://github.com/dy/piano-key

Last synced: 12 months ago
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Piano keys frequences

• Host: GitHub
• URL: https://github.com/dy/piano-key
• Owner: dy
• Created: 2015-04-26T16:51:41.000Z (about 11 years ago)
• Default Branch: master
• Last Pushed: 2015-08-28T02:48:03.000Z (almost 11 years ago)
• Last Synced: 2025-06-20T16:11:23.610Z (12 months ago)
• Language: JavaScript
• Size: 148 KB
• Stars: 2
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# Piano-key [![Build Status](https://travis-ci.org/dfcreative/piano-key.svg?branch=master)](https://travis-ci.org/dfcreative/piano-key) [![Code Climate](https://codeclimate.com/github/dfcreative/piano-key/badges/gpa.svg)](https://codeclimate.com/github/dfcreative/piano-key) [![unstable](http://badges.github.io/stability-badges/dist/stable.svg)](http://github.com/badges/stability-badges)

Tools for working with [piano keys and frequencies](http://en.wikipedia.org/wiki/Piano_key_frequencies).

[![npm install piano-key](https://nodei.co/npm/piano-key.png?mini=true)](https://nodei.co/npm/piano-key/)

```js

var key = require('piano-key');

key.getName(49);				//A4

key.getFrequency(49);			//440

key.getFrequency('A4');			//440

key.getNumber('A4');			//49

key.getNumber(440);				//49

key.getOctave(49);				//4

key.getNote(50);				//A#

key.getNote('A#4');				//A#

key.isBlack(49);				//false

key.isBlack(48);				//true

```