This is Judie Worrell. I just became aware of this thread asking about Bernie sampling CD so I checked back with LaMar Mitchell who was instrumental and getting Bernie to do this and this is what he told me.:
“ We Did Not Use Stems. Because the labels Owns the Masters and Grand Masters, so using those would have put us in line for a lawsuit.
So We had to recreate the sounds, then Bernie replayed His performances as best as he could remember.”
So there you have it
Judie