I heard yesterday that the majority of contemporary hits for the past decade are in a minor or "sad" key. The current hits are usually not uptempo. It seems tastes have changed and modern song writers are going for complex songs with mixed emotions. Perhaps that reflects the world today. Thank goodness we still have upbeat rock and roll. Maybe by continuing to play it, we can help remove some of the complexity of daily living, for a while anyway.
Reverbnation wanted something for a blog. If anybody is interested this is a place to discuss classic rock. That could be anything from the 50s up to present-day music that continues in that mode.