They’re warming up with a little Tomaso da Vittoria, a little Hans Leo Hassler. It’s interesting to watch these guys change places for each piece, putting the right voices together for antiphonal effects, or simply to facilitate the voices that work as one in a particular piece. Their conductor, Jace Wittig, counts them off and then ducks into the control room to listen to the mix. He re-enters a few times to correct a pitch, move someone away from a microphone or correct some diction here and there, but otherwise, these guys are making chamber music. They stay together through breathing and eye contact.