Complex sentence: The garage phenominon, though most often associated with North America, cannot be viewed as exclusive to it; its attributes were present in beat music scenes in various countries throughout the world, as bands proliferated in the wake of the British Invasion.
Split into simpler sentences: The garage phenominon, though most often associated with North America, cannot be viewed as exclusive to it. Source F: Its attributes were present in beat music scenes in various countries throughout the world, as bands proliferated in the wake of the British Invasion.