Tried this last night and it works really well so I figured I'd share it here, even though it's a few years old. It can even take advantage of your GPU to run faster. The sample song I tested with is 5:56 and it only took 30 seconds for this tool to split it into separate .wav files for vocals, guitar, piano, bass, etc. I recommend following this guide here: <a href="https://www.reddit.com/r/musicproduction/comments/1704kob/comment/ktj2y1u/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button" rel="nofollow">https://www.reddit.com/r/musicproduction/comments/1704kob/co...</a>