We were in Utrecht yesterday and imagine our excitement to see an actual sheet music store. In the US, they are a vanishing breed, and apparently not so common here either.
They had a nice collection of music, including study scores and some classical art song. The company, Broekmans & Van Pappel even have their own publishing company.
I left with a couple of things, including some songs by a Dutch composer I didn't know, Jan Mul. I didn't know this--there aren't as many art songs written in Dutch as Dutch composers tended to set the music in more "standard" languages like German or French.