Play multiple audio files with one click event howler js
<p>Wordpress website.  Scripts enqueued etc. I was able to get a single audio file to play without the array.</p>

<p>After using this though...</p>

<pre><code>(function( $ ) {
'use strict';

jQuery(window).load(function() {
    var sound_files = {
            sound1 : new Howl({
                src: ['/synthv2.mp3'],
                loop: true
            }),
            sound2 : new Howl({
                src: ['/synthv2.mp3'],
                loop: true
            }),
            sound3 : new Howl({
                src: ['/synthv2.mp3'],
                loop: true
            })
        };
    var play_button = $('#play-button'),
        pause_button = $('#pause-button'),
        shift_preset = $('#preset-changer'),

    play_button.click(function() {
        sound_files.play();
    });
});

})(jQuery);
</code></pre>

<p>I consistently get sound_files.play is not a function errors.</p>

<p>How can I trigger sound1, sound2, and sound3 all at the same time with a single button click?</p>