How would i have the same audio play through changing scene

[AhrenHart]

here is my code i know its not efficient but it i'm trying to have music stay the same between the scenes  and have the option to mute the audio and work throughout the scenes. 

class TitleScene extends Phaser.Scene{
    constructor() {
        super({key: 'TitleScene', active: true });
    }
    preload (){
        this.load.image('background_image', 'assets/images/MainMenuImg.png');
        this.load.image('Play', 'assets/images/Play.png');
        this.load.image('Options', 'assets/images/Options.png');
    }

    create (){
        let background = this.add.sprite(-100,0, 'background_image');
        background.setOrigin(0,0);
        background.scale = 0.7;

        //let playText = this.add.text(225,125, 'Play')
        //playText.addcolor ('#ffff00')

        var playButton = this.add.image(250,125,'Play').setDepth(1);
        playButton.setInteractive();

        playButton.on('pointerup', function () {

            this.scene.add('test',Test,true)

        }, this);

        var OptionsButton = this.add.image(250,180,'Options').setDepth(1);
        OptionsButton.scale = 1.5;
        OptionsButton.setInteractive();

        OptionsButton.on('pointerup', function () {

            this.scene.add('options',Options,true)

        }, this);
    }
}
class Test extends Phaser.Scene{
    constructor() {
        super({key: 'test', active: true });
    }
    preload (){
        this.load.image('TestImg', 'assets/images/Cemetery.png');
    }

    create (){

        let TestImg = this.add.sprite(0,0, 'TestImg');
        TestImg.setOrigin(0,0);
        //TestImg.scale = 0;
    }
}
class Options extends Phaser.Scene{
    constructor() {
        super({key: 'options', active: true });
    }
    preload (){
        this.load.image('OptionsMenu', 'assets/images/OptionsMenuScreen.png');
        this.load.image('XBut', 'assets/images/X.png');
    }

    create (){

        let OptionsMenu = this.add.sprite(0,0, 'OptionsMenu');
        OptionsMenu.setOrigin(0,0);

        var XButton = this.add.image(25,25,'XBut').setDepth(1);
        XButton.scale = 2;
        XButton.setInteractive();
        XButton.on('pointerup', function () {

            this.scene.start('TitleScene',TitleScene,true)

        }, this);
    }
}
let config = {
    type: Phaser.AUTO, // Which renderer to use
    width: 512, // Canvas width in pixels
    height: 512, // Canvas height in pixels
    parent: "game-container", // ID of the DOM element to add the canvas to
    scene:[TitleScene]
};

let game = new Phaser.Game(config);