chorus for FastGH3; example usage: https://script.google.com/macros/s/AKfycbzdUJB_KiUDSlCchIF13hXhwHs1ObagXJ_WSmToL7RzTUb7H_npEBiYmj3k4VKPW3Wr/dev?id=1iDLvKmTLNyt0GW2DCqHQMAuvf_B12OO1

!chorus for FastGH3.gs

// or download from Drive link
// supports folders and archive files

// use https://script.google.com/macros/s/AKfycbzdUJB_KiUDSlCchIF13hXhwHs1ObagXJ_WSmToL7RzTUb7H_npEBiYmj3k4VKPW3Wr/dev?id=XXXXXXX
// or now: https://tinyurl.com/FGH3g?id=XXXXXXX

function runExample() {
  doGet({
    "parameter": {
      "id": "1fh7KiIhbFhikP04JHkltwJ5Dnpw1KK-P" //1Ediig76MdWu_bXoAvWahmWdlqOxC56K8" //"1rwUD1rT4Pq6wTCNJ17E-3hRWouclDLtg" <--TOO BIG 1fh7KiIhbFhikP04JHkltwJ5Dnpw1KK-P
    }
  });
}

var hash = BigInt("0x5745534C45593634"),
    hashrev = BigInt("0x343659454C534557");

function WZK64(data)
{
  var _hash = hash;
  for (var i=0;i<data.length;i++)
  {
    _hash ^= BigInt((data[i] << 56) >> ((i%8)*8));
  }
  _hash ^= BigInt(data.length) * BigInt(hashrev);
  return _hash & BigInt("0xFFFFFFFFFFFFFFFF"); // getting weird 64 bit overflow
}

var timestart, time, log, dir = true,
    html =
    '<style>* {padding:1px; margin:1px; font-weight:400;\
font-family: monospace, Roboto Mono, Courier;}\
h1,h1 *{font-size:72px; padding:0; margin:0;}\
h2{font-size:64px;}\
div{font-size:40px;white-space:pre;}\
</style><h1>chorus for \
<!--wasteful but yoloswag-->\
<a style="color:#0f9">Fa</a>\
<a style="color:#f00">st</a>\
<a style="color:#ff0">G</a>\
<a style="color:#00f">H</a>\
<a style="color:#f80">3</a>\
</h1><h2>Log:</h2><br>',
    htmlend = "";

// don't know a fitting function name
function timeToFlt(val) {
  val='2000-01-01T'+val+'Z';
  var date=new Date(new Date(val)-(new Date()).getTimezoneOffset() * 228000);
  var time=(date.getHours()*3600)+(date.getMinutes()*60)+date.getSeconds()+(date.getMilliseconds()/1000);
  return time;
}

function print(a)
{
  log += "[" + ((Date.now()-timestart)/1000).toFixed(3).padStart(7) + "] " + a + "\n";
  console.log(a);
}

// https://stackoverflow.com/questions/10744760/google-apps-script-to-open-a-url
function JS2OpenURL(url)
{
  //print("<a href=\""+url+"\">Link</a>");
  return '<script>var a = document.createElement("a"); a.href="'+url+'";'
        +'if(document.createEvent){'
        +'  var event=document.createEvent("MouseEvents");'
        +'  if(navigator.userAgent.toLowerCase().indexOf("firefox")>-1){window.document.body.append(a)}'
        +'  event.initEvent("click",true,true); a.dispatchEvent(event);'
        +'}else{ a.click() }</script>'
}

function cFGH3Link(id)
{
  return 'fastgh3://drive.google.com/uc?id='+id+"&export=download&confirm=t";
}

function die(_html)
{
  return HtmlService.createHtmlOutput(html+_html+htmlend);
}

function doGet(e) {
  //Logger.log(e);
  timestart = Date.now();
  var cleanFolderSwitch = e.parameter.clean;
  if (cleanFolderSwitch !== undefined)
  {
    print("Got clean param");
    var FSPfolderName = "Z.FGH3$TMP";
    var FSPfolderSearch = DriveApp.getFoldersByName(FSPfolderName), FSPfolder, scan;
    if (FSPfolderSearch.hasNext())
    {
      //DriveApp.removeFolder(FSPfolderSearch.next()); // not working
      FSPfolder = FSPfolderSearch.next();
      scan = FSPfolder.getFilesByType("application/zip");
      while (scan.hasNext())
      {
        scan.next().setTrashed(true);
        // how do i permanently delete
      }
      print("Cleaned the FSP cache folder. (trashed)");
      return die("<div>Cleaned the FSP cache folder. (trashed)</div>");
    }
    //else
    {
      console.error("The FSP cache folder does not exist.");
      return die("<div>The FSP cache folder does not exist.</div>");
    }
  }
  var __I = e.parameter.id;
  if (__I === undefined || __I === "" || __I === null)
  {
    console.error("No file ID specified. Exiting.");
    return die("<div>No file ID specified. Cancelling.</div>");
  }
  log = "";
  var root, fileindex;
  dir = false;
  try
  {
    root = DriveApp.getFolderById(__I);
    fileindex = root.getFiles();
    dir = true;
  }
  catch
  {
    try
    {
      root = DriveApp.getFileById(__I);
      dir = false;
    }
    catch
    {
      console.error("Error while getting folder/file.\nDoes it exist?\nExiting.");
      return die("<div>Error while getting folder/file.<br>Does it exist?<br>Exiting.</div>");
    }
  }
  if (root.getName().endsWith(".zip") ||
    root.getName().endsWith(".rar") ||
    root.getName().endsWith(".7z"))
  {
    root = DriveApp.getFileById(__I);
    dir = false;
  }
  var files = [], curfile;
  var FSPfolderName = "Z.FGH3$TMP";
  var FSPfolderSearch = DriveApp.getFoldersByName(FSPfolderName), FSPfolder;
  if (FSPfolderSearch.hasNext())
  {
    FSPfolder = FSPfolderSearch.next();
  }
  else
    FSPfolder = DriveApp.createFolder(FSPfolderName);
  if (!dir)
  {
    print("Archive file found.");
    {
      //print(root.getId());
      if (root.getSharingPermission() != DriveApp.Permission.VIEW)
      {
        print("ERROR: Insufficient access to file. Cancelling.");
        return HtmlService.createHtmlOutput(html+"<div>"+log.replaceAll("\n","<br>")+"</div>"+htmlend);
      }
      print("PLAY!");
      htmlend += JS2OpenURL(cFGH3Link(root.getId()))
      console.log("Run link: "+cFGH3Link(root.getId()))
      return die("<div>"+log.replaceAll("\n","<br>")+"</div>");
    }
  }
  var zipHash = BigInt(0);
  while (fileindex.hasNext())
  {
    curfile = fileindex.next();
    print("Getting file info for: "+curfile.getName());
    zipHash ^= WZK64(curfile.getId()) ^ WZK64(curfile.getLastUpdated().getTime().toString());
    files.unshift(curfile.getBlob());
  }
  var zipHashStr = (zipHash.toString(16).toUpperCase().padStart(16,"0"));
  var fname = "FSP"+zipHashStr+".fsp";
  var cacheSearch = FSPfolder.getFilesByName(fname);
  while (cacheSearch.hasNext())
  {
    var cacheFile = cacheSearch.next();
    if (cacheFile.getName() == fname)
    {
      print("Found cached ZIP.");
      console.log(fname);
      htmlend += JS2OpenURL(cFGH3Link(cacheFile.getId()))
      console.log("Run link: "+cFGH3Link(cacheFile.getId()))
      return die("<div>"+log.replaceAll("\n","<br>")+"</div>");
    }
  }
  {
    print("Creating ZIP.");
    try {
      var tmpfilec = Utilities.zip(files);
      var tmpfile = DriveApp.createFile(tmpfilec), filename = fname;
      tmpfile.moveTo(FSPfolder);
      tmpfile.setName(filename);
      tmpfile.setSharing(DriveApp.Access.ANYONE,DriveApp.Permission.VIEW); // just so the launcher can download it
    }
    catch (e) {
      print("An error has occured while creating the ZIP.");
      print(e);
      return HtmlService.createHtmlOutput(html+"<div>"+log.replaceAll("\n","<br>")+"</div>"+htmlend);
    }
  }
  print("PLAY!");
  htmlend += JS2OpenURL(cFGH3Link(tmpfile.getId()))
  console.log("Run link: "+cFGH3Link(tmpfile.getId()))
  return die("<div>"+log.replaceAll("\n","<br>")+"</div>");
}

chorus for FastGH3 (buttons).user.js

// ==UserScript==
// @name		Chorus Encore for FastGH3 (buttons)
// @namespace	https://donnaken15.com/
// @version		0.2
// @description	burn your cookie dough and chocolate chips to a crisp, causing a housefire, extending to a forestfire
// @author		Wesley
// @match		https://www.enchor.us/*
// @icon		https://www.google.com/s2/favicons?sz=64&domain=enchor.us
// @grant		none
// ==/UserScript==

function dive(e, d) {
	'use strict';
	var r = e;
	var i;
	if (typeof d === 'number')
		for (i = 0; i < d; i++)
			r = r.children[0];
	else
		for (i = 0; i < d.length; i++)
			r = r.children[d[i]];
	return r;
}

(function() {
	'use strict';

	var songs;

	var updateFGH3Links = function() {
		songs = document.getElementsByTagName("ce-search-result");
		if (songs.length === 0) return;
		for (var i=0; i < songs.length; i++)
		{
			if (songs[i].fast === undefined && songs[i].children.length > 0)
			{
				try {
					var buttons = dive(songs[i], [1, 0, 0, 2]);
					var fileinfo = dive(buttons.children[buttons.childElementCount - 1], [2, 1, 0, 0]);
					switch (fileinfo.childElementCount)
					{
						case 2:
							fileinfo = dive(fileinfo, [1, 0, 1]);
							break;
						case 3:
							fileinfo = dive(fileinfo, [2, 0, 1]);
							break;
					}
					var target = "";
					var fname = "";
					var singular = fileinfo.childElementCount === 1;
					var aSP = false;
					for (var j = 0; j < fileinfo.childElementCount; j++)
					{
						var file = fileinfo.children[j];
						if (singular || dive(file, [0, 0]).checked || (aSP && !singular))
						{
							var findlink = dive(file, [5 - singular, 0, 0]);
							var l = 0;
							for (var k = findlink.childElementCount - 1; k >= 0; k--, l++)
							{
								var e = dive(findlink, [k]);
								if (e.childElementCount > 0)
									if (e.children[0].tagName.toLowerCase() === 'a')
									{
										fname = e.children[0].innerText;
										target = e.children[0].href;
										if (l > 0 && !singular)
											aSP = true;
										break;
									}
								if (aSP)
									break;
							}
							if (aSP)
								continue;
						}
					}
					if (target === "")
					{
						console.error(fileinfo);
						songs[i].fast = "1";
						continue;
					}
					var folder =
						!(fname.endsWith(".7z") ||
						fname.endsWith(".rar") ||
						fname.endsWith(".sng") ||
						fname.endsWith(".zip"));
					var driveId;
					target = target.substr(target.indexOf("?id=")+4);
					var ampcheck = target.indexOf("&");
					if (ampcheck !== -1)
						target = target.substr(0, ampcheck);
					target = (folder ?
						"https://tinyurl.com/FGH3g" :
						"fastgh3://drive.google.com/uc"
					) + "?id=" + target;
					var button = document.createElement("div");
					button.className = "ml-2";
					button.innerHTML =
						`<a target="_blank" href="`+target+`">`+
						`<button class="btn btn-neutral text-xl" style="color: white;padding: 0.3em;">`+
							`<div>Play in</div>`+
							`<img class="w-20" src="`+
								`data:image/svg+xml;base64,`+ // just to not bug my server every time for the logo
								// TODO: use background-image(svg) ::before
								`PHN2ZyB3aWR0aD0iMTAwMCIgaGVpZ2h0PSIyNTAiIHhtbG5zPSJodHRwOi8vd3d3LnczLm`+
								`9yZy8yMDAwL3N2ZyI+Cgk8dGl0bGU+RmFzdEdIMzwvdGl0bGU+Cgk8cGF0aCBmaWxsPSIj`+
								`MGY5IiBkPSJtMjMyLjIgMjM5LjN2LTIyNS40aC0zOC4wN2wtODEuMzMgMTE1LjdoLTcwLj`+
								`A3di03Ni43NWg3NS44M3YtMzguOTloLTExNy41djIyNS40aDg1LjI3bDQ4LjcyLTcwLjY0`+
								`aDU1LjQ0djcwLjY0em0tNDEuNzQtMTA5LjdoLTI4LjkzbDI4LjMzLTQxLjQzaDAuNjA5em`+
								`0tMTA1LjEgMzguOTktNDIuNjUgNjAuNnYtNjAuNnoiLz4KCTxwYXRoIGZpbGw9IiNmMDAi`+
								`IGQ9Im00NjYuNyA1MS42NiAyZS01IC0zNy43Ni0xNjAuMi01LjgzZS00Yy0zNC44MyAwLT`+
								`YzLjU0IDI0Ljg4LTYzLjU0IDYwLjkgMCAxOC40NCA3LjAyNiAzNC4yNSAxOC4xNSA0NC43`+
								`OSA5Ljk1NCA5LjM2NiAxOS4wMyAxNC4zNCAzOC4zNCAyMS4zNyAyNy41MiA5Ljk1NCAzMS`+
								`4zMyAyMi4yNSAzMS4zMyAzNS4xMiAwIDEwLjU0LTcuMzIgMjUuNzYtMjguMSAyNS43Ni0x`+
								`Ni42OCAwLTI4Ljk4LTExLjEzLTI4Ljk4LTI4Ljk4aC00MS41OGMwIDM0LjgzIDI2LjM1ID`+
								`Y2LjQ0IDcyLjAxIDY2LjQ0IDQ1LjY3IDAgNjYuNzQtMzQuMjUgNjYuNzQtNjUuODcgMC0z`+
								`My4zNy0xOC43NC01My41Ny01NS4wMi02Ny42Mi0yMC43OS03LjkwNC0zMi43OC0xNS4yMi`+
								`0zMi43OC0zMS45IDAtMTMuMTggOS4zNjYtMjIuNTQgMjIuODMtMjIuNTRsODAuMjIgMC4y`+
								`ODU4djE4Ny42aDQwLjA5di0xODcuNnoiLz4KCTxwYXRoIGZpbGw9IiNmZjAiIGQ9Im01NT`+
								`EuMSAxMy45MWMtNDQuOTMgNS4wNGUtNCAtODcuNTMgMjguNC0xMDQuMyA2OS4yNGwtMC4w`+
								`ODAwOC0wLjAwOTc2NmMtMTcuNDcgNDAuMTItOC40MyA4OS45NiAyMi4xOSAxMjEuMyAyOS`+
								`45NiAzMi4yNSA3OS42NSA0My42NiAxMjAuNyAyNy43NCAzNy4yMS0xMy41NCA2NS42My00`+
								`OC4xNyA3MS41Ny04Ny4zM3YtMzguODhoLTExMi4ydjM4Ljg4aDc1LjA2Yy03LjU4NCAzMy`+
								`45Mi00MC45NyA1OS40My03NS42OSA1Ny45LTM1LjY3LTAuMTk3OC02OC4yOS0yOC45NS03`+
								`My4wNC02NC4yOS01Ljg3NS0zNC4wMiAxNC44OC03MC4wNSA0Ny4xOC04Mi4xNiAzMC40Ni`+
								`0xMi42MiA2OC4wMy0xLjg5NyA4Ny44OCAyNC4xMWg0Mi4zYy0xNy42LTM5LjM4LTU5LjA2`+
								`LTY2LjUtMTAxLjYtNjYuNXoiLz4KCTxwYXRoIGZpbGw9IiMwMGYiIGQ9Im04MjUuNCAyMz`+
								`kuM3YtMjI1LjRoLTQxLjc0djkxLjdoLTgwLjc0di05MS43aC00MS43NHYyMjUuNGg0MS43`+
								`NHYtOTQuNzVoODAuNzR2OTQuNzV6Ii8+Cgk8cGF0aCBmaWxsPSIjZjgwIiBkPSJtODI1Lj`+
								`QgMTMuOWg2Mi42YzU2Ljg3IDAgMTAzLjQgMC4wNjcyNSAxMDMuNCAwLjE0OTUgMCAwLjA4`+
								`MjE5LTEwLjk2IDE1Ljc5LTI0LjM1IDM0LjkxLTEzLjM5IDE5LjEyLTI0LjMgMzQuODEtMj`+
								`QuMjQgMzQuODcgMC4wNjUgMC4wNjQ0IDEuOTgxIDAuNjI4MyA0LjI1OSAxLjI1MyAxNy42`+
								`NyA0Ljg0NyAzMS4yNyAxNS40MyA0MS4wMiAzMS45MyA3LjU3OCAxMi44IDEwLjk3IDI1Lj`+
								`Y4IDEwLjk3IDQxLjYzIDAgMjMuNjItNy44MzQgNDMuMi0yMy4yMyA1OC4wNS0xMy41NiAx`+
								`My4wNy0yOC4zNSAxOS45Ni00Ny43IDIyLjIxLTUuNjg3IDAuNjYxMS0xOC44OCAwLjQ2OT`+
								`QtMjQuOC0wLjM2MDQtMTUtMi4xMDEtMjguMzctNy41MzYtMzkuOC0xNi4xNy0zLjgwOS0y`+
								`Ljg3NS0xMC4yMi04Ljg2MS0xMy4yMy0xMi4zNC00LjE1Ni00LjgxNi03Ljg5NS0xMS4yMi`+
								`0xMC41MS0xOC0xLjUzMi0zLjk3Mi0zLjYwNS0xMi4wOS00LjMwOC0xNi44Ny0wLjI5NjQt`+
								`Mi4wMTgtMC42MTY0LTQuMTU2LTAuNzEwOC00Ljc1MWwtMC4xNzE5LTEuMDg0aDMxLjk4bD`+
								`AuNDA3NSAxLjc1MWMyLjEzNiA5LjE3NCA2LjM5NCAxNy4yNiAxMi4xMyAyMy4wNSA3LjE0`+
								`MiA3LjIwNyAxNi41MyAxMS41NyAyOC44OSAxMy40MyA0LjYwNiAwLjY5MjggMTQuNDggMC`+
								`43Nzg4IDE4LjY4IDAuMTYyOSAxMC44Ny0xLjU5MiAxOS42LTUuODkzIDI2LjQyLTEzIDgu`+
								`MjQ2LTguNjAxIDEyLjktMjAuMjMgMTMuNDktMzMuNzMgMC40MzY5LTkuOTA0LTEuMzQzLT`+
								`E5LjA0LTUuMTY0LTI2LjQ5LTcuMjUzLTE0LjE1LTIyLjMyLTIyLjUyLTQ0LjE5LTI0LjU3`+
								`LTQuOTEyLTAuNDU5MS0yMS4xNC0wLjIzMjUtMjUuMzYgMC4zNTQzLTEuNDQ0IDAuMjAwNy`+
								`0yLjY5MyAwLjI5NzctMi43NzYgMC4yMTU0LTAuMDgyNi0wLjA4MjQgOS45OTItMTQuOCAy`+
								`Mi4zOS0zMi43MSAxMi4zOS0xNy45MSAyMi41NC0zMi42MyAyMi41NC0zMi43MiAwLTAuMD`+
								`g1ODYtMjQuMzEtMC4xNTYxLTU0LjA0LTAuMTU2MWgtNTQuNTh6Ii8+Cjwvc3ZnPgo=">`+
						`</button>`+
						`</a>`;
					button.children[0].onclick = () => { console.log(5); };
					buttons.appendChild(button);
					songs[i].fast = "1";
				}
				catch (ex) {
					//console.error(ex);
				}
			}
		}
	}

	updateFGH3Links();
	console.log(setInterval(updateFGH3Links, 200));
})();
// if refreshing with devcon open, the tab will freeze

Made a TinyURL for the script: https://tinyurl.com/cFGH3?id=1uZgJIPU7-ESixY2n6woi6AfMjUr7dPbj

Google is so insufferable
https://tinyurl.com/FGH3g?id=1uZgJIPU7-ESixY2n6woi6AfMjUr7dPbj

updated for https://www.enchor.us/

script in google apps scripts for transparency
still don't know how this looks to anyone else
https://script.google.com/d/1bBjZs0_LTRGX9L5kE1NdVCLFhuMxltTLfqZuyFvQlPacNwxtDjl-tqga/edit?usp=sharing