As of today, Traktor software and hardware will support the new multichannel audio format, and online retailers like Juno and Beatport will begin selling the files.

Stems has now officially launched.The Native Instruments-developed multichannel audio format gives DJs access to four separate parts within a track, which opens the doors for more detailed and complex mixing techniques. After a host of labels, including R&S, Hotflush and Ghostly international, signed on to release tracks in the format, the current catalog will now be for sale through six online music retailers: Beatport, Bleep, Juno, Traxsource, whatpeopleplay and Wasabeat.The files are also now compatible with hardware and software in NI's line of DJ products, Traktor. (The files are open source, though, so down the line you'll be able to take advantage of Stems' functionality using other apps and devices, as well as make Stems of your own productions using a free Stem Creator Tool.)Check out a new video of Stems in action below.