Do-It-Yourself(ers). A sign of a good do-it-yourself-er is knowing when something should be done by a professional.
As the player piano owner didn't realize when he dove in to rebuilding a 1910, 65/88 note Ellington upright player piano. The piano represents the crossover from 65 note piano rolls to the new standard of 88 note rolls. It plays both. Or best stated played both. It will again when I'm finished.
And two lessons. Although Elmer's Glue-All may indeed glue all. There are things that it definitely should not. And...more is not always better.