The upside to attending an exhibition on a subject virtually unknown to you is that you are bound to learn a lot! Also, the low-expectations principle is a given.
As my beforehand knowledge of the Velvet Underground hardly went any further than to their most famous songs, I did, indeed, I learn a lot! I also admired smashing black and white photos of just about everyone who counted in the 1960s New York art scene and some much less smashing grainy Warhol videos from the Factory.
Possibly led on by my low expectations, I found the exhibition as a whole rich and fairly varying. And the music! (Worth the detour if nothing else for 'Waiting For My Man' loud and clear.)