Does being partially raised on power trios lead one to hope jazz comes in threes as well? Not sure, but when tallying threesomes below, don’t forget Uri Caine’s (which admittedly also hosts a gaggle of guests, but still). Caine’s got the timeliest titles, too (“Wolfowitz in Sheep’s Clothing,” “Strom’s Theremin”), trying their damnedest to convince skeptics like me that jazz in the ’05 isn’t scared to engage the real world, though Cole and Parker’s “Election Funeral Dance” comes close. Best supporting actors are Bunny Sigler (on the Caine) and Blood Ulmer (on the Carter); most unexpected cover is R. Kelly’s “I Believe I Can Fly,” also on the Carter. Rosey the nosey neighbor, sadly, makes no appearance.