When you listen to a prog rock album, how do you listen to it? In the dark? Do you occupy your mind while you listen? (Like by reading or playing solitaire). Do you just lie down and listen?

As for me, I usually listen in the dark under my bed covers.

How do you usually listen to prog?

with my ears and brains...

Mostly while reading, drinking some coffee, eating some chocolate.

Mainly by myself, when I'm alone. In the car while driving too, but not my favorite way to do it, since I cannot pay full attention to the music, same when I'm at the computer.

Same way I listen to all other music, various ways. 

Very, very loudly. On vinyl, in my music room, in a comfy chair, with a glass of top quality real ale carried out from my local pub.

Usually through headphones or in the car, on my own (singing along when I can), although driving with my prog-loving husband is a great time to listen and discuss the music.  We usually hear different things in songs - he focuses on drumming in particular and the music in general, while I tend to pay attention to the lyrics. I just realized, for example, that with all the times he's listened to Going for the One, he never once heard the self-mocking verse in the middle ("Now the verses I've sung don't add much weight to the story in my head so I'm thinking I should go and write a punch line/But it's so hard to find in my cosmic mind so I think I'll take a look outside the window") and now he's delighted to have discovered it, while I now understand more about unusual time signatures.

Downstairs in my listening area, sitting and usually reading along with the lyrics, 90%+ of my media habit is vinyl so I pay attention. When working at my desk I will do digital player on shuffle or reel to reel tape

On a boat with a goat, in the rain on a train, in a box with a fox, in a house with a mouse, in a car with a czar, in a yard with a bard, in the fog with a frog, on the earth for what it's worth, and in a chicken coop while doing a poop.

With dimmed lights and some quality headphones. Usually alone