Another interesting jazz recording (which I was able to borrow from the local public library in Mississauga, ON) is
Walk On - Ray Brown Trio Disc 2 has several tracks which were recorded before a live audience where Ray Brown, Christian McBride and John Clayton all play acoustic bass - with no other instruments. The timbral differences between the three bassists' instruments, as well as the soundtage where you can pinpoint each performer's location on stage make it a really interesting disc to listen to.
Incidentally, John Clayton is the bass player in the superb rhythm section on Diana Krall's "Live in Paris" CD/DVD.
