Piano and Sheet Music

My grandfather passed away last summer, but a few years ago, when they were downsizing, he and my grandmother decided to pass the piano on to future generations.  Grandpa was a magnificent piano player, you could tell he had played almost all of his life, and he loved to sit down and play.  His love for music became a legacy that lived on.  His two sons both became professional pianists and currently teach music in different capacities at the university level.

My kids are now opening up to playing, and I'm excited that they will have that opportunity.

The bench is FULL of sheet music, some dating back before The Great Depression.  A lot of it is show tunes, but there's certainly a variety.  I decided that I'd like to display it, but I also want to preserve it, since I'm not sure if it's of value.  So for now I've tied up a small stack of the music and placed it on the piano, until I figure out what to do with the rest.

What would you do with the sheet music?