Okay, I woke up with "Solitary Man" again but mostly the horn parts. It kept morphing into the four note descending sequence of Keith Olbermann's Countdown (DEE-do, DO-doh). Now it's just the latter.
Every morning — or just about — I wake up with some snatchlet of music in my head. Some days it may take well past lunch for the theme from "What's Happenin'?'" to work its way out and I figure why should I suffer alone?