Thumb Piano

Step 2 Cut out the wood parts

Cut two 5" x 7" plywood sheets for the top and bottom of the box and the 3/4" pine into 4 lengths at a 45 for the sides - 2 @ 5" and 2 @ 7". Glue and (optionally) nail the sides onto the bottom with small brads, then set it aside. I didn't mind using brads to hold the bottom together while it dried. They won't show much but you could just clamp it instead. Just be sure to set them in deep enough so they won't stick out and scratch things.