Let’s use <iframes
provided by archive.org
<iframe src="https://archive.org/embed/losenfants" width="500" height="30" frameborder="0" webkitallowfullscreen="true" mozallowfullscreen="true" allowfullscreen></iframe>
Embed audio playlist
Embed audio playlist with specific list height
Archive.org player with multiple files and a cover image
Idem ^ + Embed audio playlist and specific list height
Idem ^ without specified height
Loading a file with HTML <audio>