I wouldn't expect any of them to work fantastically well. It's like trying to unscramble an egg.
GigaBowser91 wrote:Like for example, some people make remixes of songs but use different background music. They have the vocals part but not the music part.
Yes, but they have the original multi-track version to work with, so they don't need to extract the parts from the mix, they have the tracks before they have been mixed.