Deletion of the key list
Regarding deletion of the key list, due to its reproduction upon pressing "F1": that help screen omits keys for which there isn't support. I just made a build without visualization, and as a result had no '8' entry in my help screen. Coming here demonstrated that I wasn't just smoking crack, and that this functionality had once existed. I'm not sure that's worth keeping that information on the page, but it's something.
Notification upon song change
The execute_on_song_change option in ncmpcpp's config file makes it possible to send a notification upon song change. Can I add an example command to the Tips and Tricks section?