IMPORTANT NOTE : you can embed external websites in a Facebook tab only if your page has 2000 fans at least.
To embed a vinyl in your Facebook page:
1) Go to your Facebook page and enter "Static HTML: iframe tabs" in the search bar or visit this direct link.
2) Click the "Add Static HTML to a Page" button
3) Choose your Facebook page to add the iframe tab and click the add button
4) Insert your iframe code in index.html, and click on 'Save and Publish'
The iframe should appear when published.
Our i-frame should appear in a 'Welcome' tab by default. If you want to rename it, go to 'Edit tab'. Once on the dashboard, 'Actions' > 'Edit name and image', change your tab name, and click on 'Save and Publish'.