## Keycodes symphony
### Instructions
Like an inspired Beethoven who's about to write his Moonlight Sonata, you're about to compose a colorful symphony of letters with your keyboard.
Write the function `compose` :
- Make it fire every time a key is pressed.
- Create a new `div` with the class `note` when a letter of the lowercase alphabet is pressed. It should have a unique background color generated using the `key` of the `event` . It should also displays the corresponding pressed character.
- When `Backspace` is pressed, delete the last note.
- When `Escape` is pressed, clear all the notes.
### Files
You only need to create & submit the JS file `keycodes-symphony.js` ; we're providing you the following file to download to test locally:
- the HTML file [keycodes-symphony.html ](./keycodes-symphony.html ) to open in the browser, which includes:
- the JS script which will allow to run your code.
- some CSS pre-styled classes: feel free to use those as they are, or modify them.
### Expected result
You can see an example of the expected result [here ](https://youtu.be/5DdijwBnpAk )
### Notions
- [Keyboard event ](https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent ): [`keydown` ](https://developer.mozilla.org/en-US/docs/Web/API/Document/keydown_event ), [`key` ](https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/key )
