There is unwritten rule, I guess, as in the whole Denmark: car driver gives a way to a bike driver and bike driver gives a way to pedestrian. Keep it, too!
Who says that Frederiksberg isn't groovy? Not the people (true cognoscenti) who are enjoying jazz one of the verdant and welcoming lawns of Frederiksberg Palace. What could be better than a summer's day with good Danish beer and cool Scandihoovian jazz? Be sure to arrive early enough to snag a good location in front of the stage.