You can find some original stems shared by songs' authors themselves. Many artists and groups purposefully publish their most technically difficult, commercially successful, or just very popular songs in the multitrack format. It's the way to get more respect in the professional industry, among other musicians and sound engineers. For instance, such multitracks could be used by people interesting the art of mixing, other musicians or DJs.

It's a very useful experience to learn multitracks of the greatest hits! Let's say, original studio multitracks of Michael Jackson, Freddy Mercury, Deep Purple or any other. Studio-stems are raw sources, as a rule. Yes, you have physical files, but you don't have appropriate hardware mounted in racks, mixer console as used during record and many other things. To make a good mix is a complex task, it's a creative act. That's why it's very difficult to recover all the palette of the original mix even in you have an original multitrack!




Red Hot Chili Peppers By The Way MULTITRACK