JJ Brau is a fireworks choreographer for J&M Displays, orchestrating dazzling shows, while Mark Johnson, the company's vice president, sources explosive materials from China. They dive into the cultural evolution of fireworks on Independence Day, from John Adams' vision to today's competitive displays. Listeners will learn about the financial complexities involved in creating these shows, including budgeting and shipping challenges. Brau also shares insights on the art of synchronizing fireworks to music, blending creativity with technical precision.