This podcast explores the rare use of sound trademarks, featuring examples like NBC's chimes and MGM's roaring lion. It discusses the impact of sound on branding and marketing, using Chili's sizzling fajitas as an example. It also explores the role of sound in car design, focusing on the challenges of creating the desired sound for cars like the Mustang. The podcast highlights the consequences of neglecting sound in branding, as seen with Frito-Lay's Sun Chips bag. It concludes by discussing the rarity of trademarked sounds and the idea of incorporating sounds into tombstones.