The first time I watched this Vidi Aquam by the monks of St. Bernard Abbey I didn't realize there were 5 singers, because of the formating--couldn't see the man on the far right. I was watching the director, whom no one was watching except perhaps from the corner of their eye. Two men have their hand inside their robes; one appears to have 12 fingers; the director slips in a little smile--either because he knows what he's saying (I don't), or he's just really pleased with the sound and quality.