Some recommendations

In NodeJS it's possible to use `fs.openAsBlob(path, { type })`
So it would be enough to just have `id3.fromFile`.

another suggestion would also be to represent images just as another slice of a File (aka Blob) that way the images would not be taking up any more extra memory. they would not even have to be read at all.

so i would propose it would instead be something like this:
```js
{
"type": "cover-front",
"mime": "image/jpeg",
"description": null,
"data": new File([ blob.slice(start, end) ], 'cover-front.jpg', { type: 'image/jpeg' } )
}
```