How do I add a background song

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I would like to know if there is any way we can add a background song that plays in all pages. I mean if we start navigating the website, I would like to continue playing the same song, and not start it over again. The following works for one page, but once I start navigating into other pages, it stops.
Any advice.???

Thank you

<audio src="Rwanda Genocide Song.mp3" autostart="true" loop="true" autoplay="autoplay"
width="2" height="5">
</audio>