Here is a video of Palestrina's Ego Sum Panis Vivus, from the Church Music Association of America's ("CMAA") Colloquium in June 2007. The CMAA's next Colloquium will be held June 16-22, 2008 in Chicago, with training especially in Gregorian chant and Renaissance musical tradition. The words Ego Sum Panis Vivus mean "I am the bread of life." I chose this chant to honor the traditional observance of the Feast of Corpus Christi, which is tomorrow. In the U.S., it will be observed this coming Sunday.