There is nothing in the idea of teaching <next-line> as <M-x next-line> versus <C-x n> which requires finding a new set of key bindings. Emacs will even helpfully remind me every time I type <M-x next-line> that it is bound to <C-x n>. That's an absurdity within the standard approach to Emacs tutorials.
 I am assuming that this is not just a feature of the Emacs configuration I downloaded as part of LispCabinet. http://lispcabinet.sourceforge.net/