Originally Posted by Flying_V_Goddess
Dumb question but what is a piano key border?
It just means that you cut all the strips to whatever width you want the border to be (plus seams obviously) then join them randomly by their long edges until they're long enough to make the border. It supposedly looks like the piano keyboard. ;-)
I think they look best if there's a skinny border to match the binding (preferably a darker solid fabric) between the 'piano keys' and the centre, so it's kind of framed. Otherwise it can look a bit messy. :-D