The internal architecture of the LP is so ingrained that some groups like to mess with our heads and not mark Side A and Side B. Most recently this occurred with an LP I was playing FORWARDS AND BACKWARDS, Frode Gjerstad, Johnny Dyani, John Stevens, on Impetus. I found myself flipping the LP over a couple of times looking for the side markings -kind of like the title of the album. Then you just say, fuck it, pick a side and go with it I assume the point of such an exercise, if not to needle the customer a bit, is to break the listener from safe mooring posts and make them experience the music without known markings and directional indicators. Free listening so to speak.