Here is something for you all to make using the AP-450 a lot easier. Attached is a function template. I printed it out and then glued the paper onto a cereal box for rigidity. I cut to size with a paper cutter and used an exacto knife to cut away the areas for the blakc keys. The template then fits nicely on the piano. No more referring to the manual mid-song in order to use a function. David P.S. Surprised this is not included with the piano. 2 pieces of light cardboard is not a big cost. Piano Template.pdf