Refresh controller in javascript

[LRScudeletti]

I have a function that updates the movement to be played, how do I get the controller to update? In my tests nothing happens as I change, follows the example of the function:

function change (rec) {
    switch (rec) {
        case 1:
            controller.use ('playback', {
                recording: 'recordings / test1.lz',
                pauseOnHand: false,
                loop: true
            }). use ('riggedHand', {
                materialOptions: {
                    color: new THREE.Color (0xff0000)
                },
            });
            break;

        case 2:
            controller.use ('playback', {
                recording: 'recordings / test2.lz'
                pauseOnHand: false,
                loop: true
            }). use ('riggedHand', {
                materialOptions: {
                    color: new THREE.Color (0xff0000)
                },
            });
            break;
    }
}

Regards.