These days, very little.
At age 20-21 it was any one of the first five Chicago albums, Rolling Stones' "Some Girls" or "Let it Bleed", miscellaneous Moody Blues, Jethro Tull's "Thick as a Brick", ELP's "Brain Salad Surgery", maybe some America or ELO, while I was trying to stay awake at 2AM typing up a paper due the next day. With a couple of Miller's, worked like a charm.
Hmmm. Obviously haven't done that in a while. Have to try it again when the rest of the family is out.