Everything went without a hitch gluing the keyboard blank pieces today. I can see by how it's drying that a lot of sanding will ensue over the next couple of days. Note: I did use the Big Fellas (my large clamps); they're under the pieces supporting them.
I'm not really looking forward to the next step - sanding is not my favorite woodworking task. Yet, it must be done if the show is to go on. And it must go on.