BJ!

If you're a public radio listener, you've heard of BJ Leiderman. Hundreds of times. He's that fellow whose name is announced at the end of so many great shows, from Morning Edition to Science Friday: "and our theme music is by BJ Leiderman."Did you ever wonder who this guy is? Or how he came up with so many wonderful songs? Stewart did. Then, one day, he received an email message . . . .WARNING: This episode of Your Weekly Constitutional has nothing to do with the United States Constitution. But it has everything to do with public radio, music and fun. And while the Constitution doesn't expressly mention any of those things, well, perhaps it should.