i can't remember the exact product, but i know korg makes these "pandora" things. i heard one of em you can run the cd or something through it and it eliminates the bass track so you can play the bass for the song without the bass being there. anyone else heard of/tried or seen this? anyway peace
Korg Pandora PX3B There is a review right here in TB: http://www.talkbass.com/news/newsview.php?ID=23 "Furthermore, using the AUX input with the newly-developed bass canceller feature allows users to play along with a CD or other outside audio source."