[OvidNaso]

Oh, the beauty of emacs, the self-documenting editor...This is highlighted at the top of the built in tutorial if you change your keybindings:

>NOTICE: The main purpose of the Emacs tutorial is to teach you the most important standard Emacs commands (key bindings). However, your Emacs has been customized by changing some of these basic editing commands, so it doesn't correspond to the tutorial. We have inserted colored notices where the altered commands have been introduced. [More]

[More] is a list of the default keybinding, the command, and how to access the command in "your" emacs.

The keybindings are also changed throughout the entire manual (C-h i) I believe.