Did you try Firefox and its Tools, Info, Media feature?
http://www.w3schools.com/tags/tag_audio.asp shows that HTML does support such web pages but too many pages use a MP3 player so if I suggest one way, your next web page will break the native feature in the browser.
You're going to have to share a link to the page and then figure out a new way if a new page uses another method.
Hello & Thanks ,
Couldn't find an html Forum here .
Its easy to save.image.as from any webpage .
But how can I save a sound file , *.mp3 ?