Are you using a text-browser?...Cool beans :)
If you are in a terminal, may I suggest using 'w3m' + 'mpv'? You should be able to play muisic with mpv as long as there's supported embedded audio somewhere one the page. Either set your w3m's external browser setting to use mpv or use SHIFT+u to get URL and then use 'mpv /the/URL/path'.
The Music section is currently set as ./Music/desktop.html
I know redirects are annoying, but this was done just in case I wanted to change websites without having to edit every single HTML.