In the magazine this week, Michael Schulman writes about Tim Minchin, the singer-songwriter-comedian who composed the music and lyrics for the musical "Matilda" (an adaptation of the Roald Dahl book), which just opened on Broadway after a celebrated run in London. Here, Schulman listens to and explains a few of the songs that made Minchin famous in his native Australia and in the U.K. Also, a phone call with Minchin himself.