Here is the code for a self-contained YouTube music player widget. You can save this code as a single `player.html` file, host it on a server, and then embed it into any other page using an `iframe`.
### How to Use
1. Save the code below as an HTML file (e.g., `Youtubeer.html`).
2. Upload it to your web hosting.
3. Embed it in your website using an `iframe`, passing the YouTube video or playlist URL as a parameter named `url`.
**For a single video:**
```html
```
**For a playlist:**
```html
```
-----
### `Youtubeer.html`
```html
YouTube Music Player
