Woolson's short stories have long been regarded as pioneering examples of local color or regionalism.
It is considered a pioneering example of photojournalism and was an immediate success, selling 1,700,000 copies a week after only two months.
The structure was a pioneering example of "non-orthogonal" structural components.
It is also a pioneering example of what is known as visual or concrete poetry.
During the 1980s, Stetsasonic was a pioneering example of a live hip hop band.
Open-source software is a pioneering example of the kind of collaborative work made possible by the Internet.
It was a pioneering example of rooftop planting, being built on top of an underground garage.
It uses a hybrid approach, combining 3D computer graphics with traditional animation, and is a pioneering example of this technique.
As you note, the festival, "with its informal character and moderate ticket prices has become a pioneering example of successful musical programming."
"Sparkle and Spin" is a pioneering example of a children's book subgenre one might call designed picture books.