How to ruin a good player piano

I was at a thrift store yesterday, and while I was perusing some items
I heard the unmistakable sound of a piano waft over from another part
of the store.  Some curious kids were banging on the piano as kids are
wont to do.  Naturally I had to go check out the piano.

It was an Everett upright, the case not too bad for its age.  A quick
glance told me it was a player piano.  Much of the pneumatic parts in
the lower section were still there but the stack had been removed.  The
piano had most of its original ivory keys with a few missing.  However,
a well-meaning person had pasted labels 'ABCDEFG' on all the keys.

I played a few bars of a song on the piano.  It was such a shame to see
these alterations because the piano had a lovely tone.  I would have
loved to hear a roll on this piano.

Joyce Brite
Player Piano and Mechanical Music Exchange
http://mmd.foxtail.com/Exchange/