Don't forget that Mozart worked on commission. He almost always would write something if he knew exactly who was paying for it and where it would be performed. So you can't really separate the creation of genius from the appreciation of it.
The coffeehouse is good for genius, and the Viennese coffeehouse is a classic case. Freud had his favorite coffee shop, and so did Gustav Klimt.
Genius is not only a what or a who, it is a where. It is grounded in a place every single time.
