A SWIM LESSON: Watching a child learn how to swim is like witnessing a great opera. The maestro of this emotional orchestra is Bill Marsh. Swimming is the closest human beings will ever get to flying. And there is no greater joy (or fear) than watching your kid take the leap. Watching Bill teach kids how to swim is the parable we need, because inside his lessons are profound universal truths. STORYCORPS SHORTS: FAMILY HARMONY: When Gilbert Zermeno dreamed of joining his school band, he pictured himself playing a shiny saxophone. To his dismay, his family - getting by on the $100 a week that his father made working in the nearby cotton fields - couldn't afford one. At StoryCorps, he shares with his wife, Patricia Powers-Zermeno, how his musical journey began on a bad note, but ended in harmony.