Script to play music on button click and disable button after specified time

I’m trying to use the onClick function to make a button play an audio file and then disable after a specified length of time (to line up with the end of the audio file). Basically I’m trying to set up a Mission Impossible-esque thing where, when the button is clicked, the audio file plays and at the end of the recording the button disables (the message “self-destructing”). I can get the file to play but I can’t figure out how to get the button to disable using the script code. This is what I’ve got so far. I tried both document.getElementById("briefingButton").this.disabled="true" and document.getElementById("briefingButton").style.display="none" and neither works.

<p id="briefingButton"><input type="button" value="Click for briefing" onclick="playMusic(); disableButton()" />


<script>
function playMusic(){
  var music = new Audio('/Users/devonhunt/Documents/ADVENTURE WEDDING/Mission briefings/dom mk1.mp3');
  music.play();
  }

setTimeout(function disableButton() {
  document.getElementById("briefingButton").this.disabled="true";
}, 1080)

</script></p>