That's a great option, but I also like having tracks that sync with what's going on (i.e. playing on diff stages, going between menus, etc).PC version has something superior.
*Turn BG music to zero. Play your own whatever song on your PC via wimamp, foobar, etc. No need for Tekken Jukebox.
*This applies to pretty much all PC games.
I can't wait until Jukebox mode gets unlocked (via Namco or mods).