Flag_it!_Downloader.user.js

// ==UserScript==
// @name        Flac it! Downloader
// @namespace   www.sammyshp.de
// @description Download from Flac it!
// @include     http://www.flacit.com/album/*
// @include     http://flacit.com/album/*
// @include     https://www.flacit.com/album/*
// @include     https://flacit.com/album/*
// @version     1
// @grant       none
// ==/UserScript==

// Optional: Include our jQuery. Flac it! uses 1.x
// require     https://code.jquery.com/jquery-3.1.0.min.js

// Example download URL, song is the file in the original download archive, starting with 1:
// http://flacit.com/Store/player.php?id=202928&sid=b53645be0ee5b9ceed47b8f9e0406cc5&song=1

let container = $('<div style="border: 1px solid black; margin: 2em; padding: 0.5em;"></div>').insertBefore('#mp3s');

let baseurl = $('#song > source').first().attr('src').match(/(.*song=)/)[1];
let songcount = 0;

$('.html5player').filter(function (index) {
    let title = $(this).parent().attr('title');
    return !/^Disk/.test(title);
}).each(function (index) {
    // let song = parseInt($(this).attr('onclick').match(/(\d+)/)[1]) + 1;
    let song = index + 1;
    let title = $(this).parent().attr('title');
    container.append('<a href="' + baseurl + song + '">' + title + '</a><br>');
    songcount++
});

let shellcommand = $('<br><br><input type="text" readonly style="display: block; width: 100%; box-sizing: border-box;">').appendTo(container);
shellcommand.val('for i in {1..' + songcount + '}; do curl -J -O "' + baseurl + '$i"; done;');
shellcommand.focus(function() { $(this).select(); });