Well, first of all, you have a habit of saying "classical music" to refer to all non-pop music, which is a faux pas. For a person who listened to a lot of classical, you seem to lump it all together.
Well if I came out with a classical song today, that wouldn't really be experimental, would it? I'd just be writing for a genre.
Well, if you did something new with the classical styling, it would be experimental. If you just wrote a generic, boring, token classical song, it wouldn't. I don't understand what you're struggling with here.