I love to listen to classical rock music.  Do you like it?  
I do! Who do you listen to? I listen to a lot of progressive rock, I love many many genres.
What genre is your favorite?  I am unclear on all the different genres.  Could you describe any of them for me?
Progressive music of any genre is great because it extends the boundaries of a genre, it's like if you took your two favorite genres and put them in a blender.
Oh, wow!  Can you give me an example of progressive rock, or at least the idea of two genres combined?
Good examples of progrock would be Coheed and Cambria or David Maxim Micic, David is a solo artist, the work he does is incredible art. 
I am most familiar with 1970's rock through 1990's rock and roll.  I know in the 1990's, there was a new genre called alternative rock that came out..  
Coheed and Cambria has been at it since about the 90's, they have a comic series that tells the story of their music. All of their albums are connected in one massive story.
Really.  Now that is quite interesting.  What is their theme of music and story?
It is based on "The Armory Wars" a cosmic sci-fi love story involving planets and lore of all magnitudes, it's ongoing even into their upcoming record.