Before watching the movie:
I was a little confused by the box description of the Marx Brothers skewering the “schemes” of a pompous opera singer when an arts patron is already going to pay him the exorbitant amounts just because he’s such a big star and great singer. It makes a lot more sense to think about it more like a feature-length Bugs Bunny cartoon, with the Marx Brothers skewering the powerful to empower the lowly.
This is widely regarded as the best Marx Brothers movie, but I don’t remember it being on the same list of great comedies that brought Duck Soup to my attention. A spot of research shows that it’s on there, I just didn’t remember it.