What a great message. One seemingly small act from one (small) person, can bring about a so much goodness for so many people. In this case the "effects" are obvious in that hundreds of people are participating and enjoying the music, but one little act of holiness, one little mitzvah has the same effect. When we choose to add goodness and Godliness into the world we create an celestial symphony . Now what are we all waiting for, lets get out there and make some soul music!