How to find existing keyboard shortcuts

[Russell Wallace]

How do you find what an existing key is mapped to?

For example, I set the mapping to playback a macro to be ctrl-P, which worked fine except that this was already set to print, which still took precedence. Fortunately I guessed that was what it was so it was easy to disable it for print, but in general is there a way to check this without reading through the entire list of menu options?