Fix those annoying flashing tabs when the song changes.

google-play-music-dehighlight.user.js

// ==UserScript==
// @name         Google Play Music Dehighlight
// @namespace    http://www.rummik.com/
// @version      1.0
// @description  Disable tab highlights in Google Play Music on Chrome due to title change
// @author       rummik
// @match        https://play.google.com/music/listen*
// ==/UserScript==

Object.defineProperty(document, 'title', {
    enumerable: false,
    configurable: false,
    writable: false,
    value: 'Google Play Music'
});