install wiki-plugins/wikiplugin_xspf_player from mods.tiki.org
upload your mp3s to some dir accessible and served by webserver, remember URLtoMP3
use xspf wikiplugin in wiki-type tikiwiki object to put video online:
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{XSPF(song=URLtoMP3)}{XSPF}
or create an xspf playlist xml file and use the playlist feature:
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{XSPF(playlist=url_to_xspf_playlist,player=full)}{XSPF}