they can either tune down a step or Geddy can sing it differently
It is a physical fact that our voices get deeper as we grow older. Geddy's voice has so much more tone and depth now even though he cant sing as high as he did in his 20's
He can definitely yodel really well.
I can listen and watch that part between Tom Sawyer through 2112 without cringing too much but the rest of it, forget it.