regardless of what opinions some of us have, Northern Soul is what you want it to be, we've all probably got a slightly different opinion of the scene.
First and foremost IMO it is the music, well it is for me, its what we got into it for is it not. All soul music too not just Northern.
The friendship came second and some lifelong friendships have been and are still being made, whatever path we have taken in life. I know it is a clich but It was a way of life, it still is for some. The music, the friendships, the gear (for some), the fashion(s), coach trips, services, record collecting, tape swapping and more...some of those gone by the wayside with the advent of the internet, lots all to easy to come by especially the music...good or bad? again different opinions about that.
As for the music yes it is mainly soulful, black dance music but if you analyse the music over the last 40 years there is probably every genre going thrown into the pot.