He says a perpetual pitfall for classical music announcers is the pronunciation of composers' names. Even those of us who've been in the business a long time make mistakes. And let me assure you there is someone out there listening who knows how to pronounce the things we don't, and they are more than willing to share this with us. Usually they're kind. Occasionally they'll question why we were hired if we can't pronounce the names.
Listeners call in when they have questions as well as complaints.
If they've heard a piece they can't identify they may call for help. Some will hum the piece. Some call when they've heard a commercial with a classical music background and they can't quite name that tune. When Dryer envisions WUOT's typical listener, he sees double. They aren't the same people.