Is it “classical” or “Classical”?

Here are the two most confusing and misused words:
Classical music & classical music.

Was Chopin a Classical composer? Don’t jump the gun yet. The correct answer is ‘NO’. He wasn’t; yet, his music is referred to as classical music. Chopin was in fact a Romantic composer. That doesn’t mean he was a romantic fellow, even though he was, but again the term “Romantic” refers to the period in time in the History of Western Music. The classical music is an umbrella-term under which falls the different periods in history such as Baroque, Classical, Romantic and etc.