Keyboard 1 is more than 7 and 2 1/2 octaves long – running from A to high D#.

All that metal is pretty heavy, pharmacy and the weight actually bows the stringers that carry the keys across it, so I’m building in a crosspiece for support. It will run vertically between the top rail and bottom rail, and all four stringers will screw down to it for support.

I lay out the keys then I tighten the frame at the corners along the bottom …
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