I know a couple of things about the show. That it's about a relationship and one storyline is told in cronological order while the other one is in reverse cronological order. And, I have had heard a couple of songs from the score here and there over the years. With that being said, if I pretty much have little knowledge of the show, would I still be able to follow what's going on if I sit down and just enjoy the show? Or does it require some research prior to seeing it?
"If you try to shag my husband while I am still alive, I will shove the art of motorcycle maintenance up your rancid little Cu**. That's a good dear"
Tom Stoppard's Rock N Roll
I went in knowing pretty much the same you said you know, and I enjoyed it VERY much. Excellent performances, dazzling production, and is a beautiful score.
I don't think you need to go in knowing anything, the reverse chronological story becomes clear half-way through.
I saw a benefit of this show with 4 women and 4 men playing the roles at the same time (among them Tracie Thoms, Eden Espinosa, etc) and I still was able to follow the story.