var self = this;
        console.log('teste');

        $.ajax({
            url: 'js/fake-ws.json',
            complete: function (data) {
                self.$data.musics = data
                console.log(self.$data.musics);
            }
        })
    }

<div id="playlist" class="panel panel-default">
              <div class="panel-body">
                    <ul>
                         <li
                            v-repeat="musics.item"
                         >
                            <a href="">{{nome}}</a>
                        </li>
                    <ul>
              </div>
        </div>