[opiums]

Всё отлично работает, спасибо за тему!

"use strict";
$(function() {
	$.ajax('./playlist.json', {
		dataType: 'json',
		success: function (playlist) {
			$('.mplayer').mplayer({
				'volume': 0.5,
				'playlist': playlist || []
			});
		},
		error: function () {
			console.log('Somethign went wrong');
		}
	});
});

Содержимое playlist.json:

[
	{
		"title": "A Bird Story - Title Theme",
		"author": "Kan R. Gao",
		"cover": "assets/cover2.jpg",
		"background": "assets/cover.jpg",
		"pfile": "A Bird Story/01. A Bird Story - Title Theme.mp3",
		"duration": "152"
	},
	{
		"title": "Yesterday",
		"author": "Kan R. Gao",
		"cover": "assets/cover2.jpg",
		"background": "assets/cover.jpg",
		"pfile": "A Bird Story/02. Yesterday.mp3",
		"duration": "349"
	}
]