Everyone is looking to blame something for the "death" of smooth jazz, but as I said in another forum, the music was tired, old, and stale by the time the format kicked. Stations began adding other genres into the mix in an attempt to add some life, and break up the monotony. I think the additional genres helped prolong the format at least another ten years. But it was dead musically a long time ago. The audiences weren't attending jazz festivals either. Smooth jazz records weren't selling. All of the indicators one would look at to determine the health of a genre were pointing down at least ten years ago, long before PPM. Today, even public non-commercial stations are dropping jazz from their stations, and they don't care about PPM or demographics. If it can't survive in the non-commercial world, it's in real trouble. So don't blame PPM when the real problem is the music itself.