In print, the Goldbergs (Goldberg Variations) have a quasi-legendary status, a hallmark of technical difficulty.
I was perusing the score and it doesn't look terribly intricate for what's possibly a majority of the variations - certainly less than Bach's 3- or 4-part works.
Aria looks easy-peasy, the first variation has some fun going on with the LH and you have to work on your fingering with the RH and do some thumb-under-ing , but it doesn't look impossible, ditto for 2nd. 5th looks approachable. 18 very much so.
Even 26, 28: lots of notes, but they look like 1-2-1-2-1-2-1-2... with the occasional pinky leap.
Some are in fact very scary, with all the 32th notes and the > 8th leaps and whatnot, but even then they look more like good ol' fashioned keyboard shredding than... um, the really really scary Rachmaninov stuff.
Am I being superficial and ignorant (I am an amateur with little training beyond Old MacDonald Had A Farm), is this stuff deceptively simple or is there, in fact, a significant portion of them that's actually playable?