I guess I'm not surprised to see Touhou music being popular in this scene. It's pretty baroque and bombastic to being with, so taking baroque style to its logical conclusion is..... this. I'm not a fan, but I can see the thread. (Aside, if you want a modern take on classical music, check out some of the later Touhou soundtracks. You might find yourself surprised for video game music.)
Also a little Totaka's song easter egg in the middle of the first video, if you're into obscure video game minutia.