Why not add keyboard shortcuts to tool-tips on command buttons on palettes?
Probably someone else already noticed this, but anyway:
It is often practice to add key shortcuts in so-called tool tips (pop-ups that appear when you position the mouse pointer over buttons/icons).
Interestingly, keyboard shortcuts are shown for toolbar buttons (like "Start or stop playback (Space)"). But are not shown for command buttons on palettes.
For instance, when you search for "slur" using the Palettes search and then position the mouse pointer over the found slur icon, the tool tip should be "Slur (s)" (instead of just "Slur") so that you can learn that by pressing the "s" key you can execute the slur command.