Sometimes.....just sometimes...the vocoder thing works (usually on the parts where you can hear the real Karl as well....on the first listen I didn't even hear the other voice. More going on in the background of this track, lots of little touches you don't hear the first time around too (sounds A LOT like Ancient Fat Farm Coat near the end....maybe Farm Coat is a part of the 20 minutes too..hmmm.) If this track is released as is...I would REALLY suggest turning up the "real voice track" up quite a bit in the mastering phase.
Besides, Daft Punk already proved that Robots suck ass at singing.....
