D'oh! This is the SECOND time I've accidentally deleted my BFT answers before hitting the submit post button. I'll finish out my guesses later, but here's disc 2 number 5:
5. It took me 2 days or replaying this in my head to figure out exactly who this was. I've worked at a couple of radio stations, and I instantly knew that I'd heard this tune at one of them, but I couldn't remember which one or why or who it was. Finally, I got it: it's this guy.. Last year another guy at the station produced a program of his complete work, and this tune was used as the "bed" for the 30-second promo he made for it. I was running another program at the time and had to play the promo 4 or 5 times. Don't know what album it is, but I'm 99% sure it's him. Not quite gritty enough for my tastes, but a nice performance nontheless.