That's #2 on the suspect list actually.
Our top three candidates are, in order,
- Polyphemus - The solarium involves a great deal of mythology https://en.wikipedia.org/wiki/Polyphemus
- Polyphony - For relatively obvious reasons. Unfortunately, none of us have developed enough skill with audio manipulation yet to thoroughly test this.
- Polyphenol - There's a chemistry system in the game and it's been critical in solving a couple other mysteries.
I really like the way you think; you're pretty resourceful. That website you linked seems ESPECIALLY useful. I would've loved to have had that during some earlier puzzles.