Board Thread:Support Requests - Designing Your Wikia/@comment-24814805-20150514085235/@comment-303594-20150514094321

Please read http://www.punkchip.com/autoplay-is-bad-for-all-users/

tl;dr autoplaying music:
 * Is bad for users with screen readers
 * Is bad for users who are listening to music or doing something else whilst browsing
 * Is bad for people with people who find it distracting (because it is distracting)
 * Causes the user to download audio that they might not want to, which is a consideration for mobile users

Don't use it.