"I'll take a stab at your question"
Thanks! I have one program, I'll just have to fiddle with it and see what I come up with.
You're welcome and good luck, but I'm guessing that you may not be too happy with what you end up with because you will most likely have to remove so much frequency range in order to remove the vocal elements that what's left won't sound very appealing.
That's why there have always been "karaoke editions" of songs which are usually entirely new performances of pop songs, just without the vocals, as well as the old "Music Minus One" series of recordings which were marketed to musicians so that they can play along with orchestras and fill in the missing part...again, entirely new performances and done without a specific instrument.