Lesson for today: if you're playing keyboard in an ensemble, you don't always have to play. If you listen to "Carry On Wayward Son" you'll notice that the organ doesn't play through the whole song. In fact it probably plays on only half of the recording. Why? Generally, having an distinctive instrument like the organ playing all the time transforms it into sonic wallpaper. The less you hear of it, the more of an impact it makes when it's featured. For further studies on how to play less, listen to Benmont Tench with Tom Petty and the Heartbreakers.