Single category

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<ul id="container">
	<li data-genre="rock, blues, classic rock, jazz"> ... B.B. King ... </li>
	<li data-genre="pop, rock, alternative, indie, british, britpop"> ... Oasis ... </li>
	<li data-genre="soul, rnb, jazz, female vocalists"> ... Erykah Badu ... </li>
	<li data-genre="alternative, hip hop, soul, funk"> ... Gnarls Barkley ... </li>
	<li data-genre="blues"> ... Howlin' Wolf ... </li>
    ...
</ul>
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