"Decoding cancer-addled ramblings", Ask MetaFilter 1/20/2014:
In my grandmother's final days battling brain cancer, she became unable to speak and she filled dozens of index cards with random letters of the alphabet. I'm beginning to think that they are the first letters in the words of song lyrics, and would love to know what song this was. This is a crazy long shot, but I've seen Mefites pull off some pretty impressive code-breaking before!
My grandmother passed away in 1994 of a fast-spreading cancer. She was non-communicative her last two weeks, but in that time, she left at least 20 index cards with scribbled letters on them. My cousins and I were between 8-10 years old at the time, and believed she was leaving us a code. We puzzled over them for a few months trying substitution ciphers, and didn't get anywhere.
My father found one of the cards the other day and I love puzzles and want to tackle the mystery again. Based on some of the repeating segments (many lines start with PST, many end with PAGA, and TYAGF repeats often at the end), I'm thinking they may be song lyrics. She inserts lots of backwards commas, and strange breaks at various points that could indicate stanzas. The back of the card has two numbered lines that contain the same letters. The letters (with line breaks to match the card) and images of the cards are below.
Within 14 minutes, harperpitt had figured out the first couple of lines of the back of the card:
Our Father who art in Heaven, hallowed be thy name… etc etc etc
Others jumped in as well, and decoding continues.
For some additional discussion, see Alex Goldman, "Yesterday, the internet solved a 20-year-old mystery", 1/21/2014.