I swear it wasn't like this 15 years ago. But what do you think has actually changed in the meantime? Obviously you haven't changed your teaching methods to be more inclusive towards "oom pah pah themes" over that period (OR HAVE YOU)
Hehe! I wish. And now you mention it, hand me that tuba. Or a sousaphone would do.
I'm not exactly sure what's caused it, but this tendency to infantalise music (or more specifically its context and potential meanings) has certainly increased in recent years. But also note that she wrote 'what's more German than a beer-keller styled piece?'. I don't think that's ironic (let alone intentionally poorly grammaticised); and the damn woman's 20 years old! It's a kind of history-and-culture-as-storybook-fodder mentality. Or call it wilful/enforced ignorance if you prefer.
I had another student this afternoon announcing her intention to orchestrate 'the well-known 2nd [sic] world war song [sic] Danny Boy to reflect its Scottish [sic] roots with pipes and stuff'.