Implement WHATWG's Audio object using Phonon.
<a href="http://whatwg.org/specs/web-apps/current-work/#scs-sound">http://whatwg.org/specs/web-apps/current-work/#scs-sound</a>;

Only tested with the Fake backend, as it is the only one
I could convince to work on my system at the moment.

If someone with more sound-foo would feel like testing it on other backends, here is a (rather sophisticated) example for you to try:
<a href="http://ebooksfrance.org/~germain/jigsaw_sonata.html">http://ebooksfrance.org/~germain/jigsaw_sonata.html</a>;