Musical Light, hosted by songwriter/composer/playwright Terry Breen, features songs and instrumentals that "light up" Terry as a music creator and performer. The focus is on Terry's original songs and instrumentals, but also include uplifting and meaningful music from all genres and periods. Frequent guests with expertise in certain music genres add to Terry's lighthearted comments--and occasionally live performances--with each themed episode. He notes: "Besides knowing that there's a certain theme for each episode, listeners don't know what to expect from moment to moment--and often neither do I."