If you’re a Second Disc reader, you’re no doubt aware of the immense musical power film composer John Williams has over us (and people like us!). Even a casual fan surely knows his most familiar works for the screen, from Star Wars and Indiana Jones to Jurassic Park and Harry Potter; the films of Steven Spielberg (JAWS, E.T. The Extra-Terrestrial, Schindler’s List); themes for everything from Superman to the Olympics. He’s picked up five Oscars (53 nominations, second only to Walt Disney), 25 Grammys, the American Film Institute Life Achievement Award (the only composer to receive the honor),…