Marasssa Duo
The percussionists were great. They played marimba, vibraphone, steel drum, congas and other percussible objects, some of which I don't know the names to. Thrown in with originals were numbers by Gillespie, Corea, Metheny and Coltrane (that one is the best)! Very interesting and unusual.

First, the door to the street was open, so the sounds of cars and passerbys were mixing with the marimba; I wanted to start clapping on the metal chairs as well, but refrained. Later someone closed the door, and the sound became tamer (after all, they call themselves "chamber music"!), but it was good nonetheless. New Yorkers, you gotta go to their show tomorrow:
http://www.jdapercussion.com/groups/marassaduo.htm