Deep Purple "Machine Head" is recorded in a hotel corridor! It's not only one of the classic rock albums, it sounds very good to. I have the anniversary edition on CD from 1997. One also got a remixed "bonus" disc, wich sounds crap!
Rolling Stones live att Camden Theatre 1964-03-19. Only available as bootleg, but sounds superb. It was recorded by the Beeb as test broadcasting in stereo.
Early stuff with Jonathan Richman sounds like it was recorded in the living room. Maybe sounds more "interesting" than actually good!
Janis Joplin, Trouble in Mind. Here someone is typing on a typewriter. Loud and clear.
I could probably go on and bore you for ever / JohanR