Pipe audio from server side to Web Audio API

audio.js

// https://web.archive.org/web/20170715041035/http://www.willvillanueva.com/the-web-audio-api-from-nodeexpress-to-your-browser/

var express = require('express');
var fs = require('fs');
var ejs = require('ejs');
var path = require('path');


var app = express();
app.use(express.static(__dirname + '/public'));

var filepath = path.join(__dirname, 'monty.mp3');

app.get('/music', function(req, res){
    res.set({'Content-Type': 'audio/mpeg'});
    var readStream = fs.createReadStream(filepath);
    readStream.pipe(res);
})

app.listen(8000);

function loadSound() {
    var request = new XMLHttpRequest();
    request.open("GET", "http://localhost:8000/music", true); 
    request.responseType = "arraybuffer"; 
  
    request.onload = function() {
        var Data = request.response;
        process(Data);
    };
  
    request.send();
   }

   function process(Data) {
    source = context.createBufferSource();
    context.decodeAudioData(Data, function(buffer){
      source.buffer = buffer;
      source.connect(context.destination); 
      source.start(context.currentTime);
  })
}