My thoughts on the red letters are they are a hint to looking for a skip pattern. Basically like a book code with a series of numbers that show you how many words, or letters, to skip to find your next word or letter to pull out. That seems to be the most obvious choice for deciphering the keys also since the Spanish numbers following each word. My guess is that you need to find the END to know where to start your skip pattern. And then experiment with using the numbers to jump forward either words or letters and either keeping them, or like Dolos might be suggesting is to FORGET those and cross them out. Ultimately ending up with a meaningful message on each key, or possibly even just one word left per key giving you something like "CITY OF ....". Somehow the look at the end and forget why makes me look straight to the "25" on the teeth of the bottom key. Which I think is most people's first instinct when it says to "look at the end". Y is the 25th letter of the alphabet so that key's teeth is just a big Y. Now does that mean to forget all the text on the teeth of that key and not use them in the skip pattern? What about the "tres" and "cero"? Do we not use those also? Or are we left with them for a reason? Maybe "30" is the first number to start your skip from wherever the "END" is? And what's up with the "Y" missing on the top key? You would think the keys would be "W.H.Y." but they are WHL. But if you "FORGET" the Y and replace it with the "answer" to what we all Yen? Yenn? however it's spelled, which is most likely "LOVE" you get WHL. Love happens to be on that same key. Maybe if the answer to what is yenned is "love" maybe that is telling us to start the skip pattern on the top "LOVE" key or even on the word love on the love key. His recent change to the website with the Heart Lock opening up I feel is a big hint to find THE END in the top key and that which will eventually unlock the rest.
I have been stirring these thoughts around for the last couple weeks and just can't find the time to sit down and "fail and then retry" to find the correct starting point for the suspected skip pattern. Because remember, you could be looking to pull entire words, or first or last letters of a word only, you could be counting individual letters on the skip, entire words (probably not the Spanish numbers I'm guessing because I suspect those give you you're next skip numbers once you find the right starting place, but maybe you do count those too?), and are you pulling or forgetting letters or words?...there are quite a few ways of pulling or forgetting letters out so every potential starting place you should run the skip in all the ways to see if anything materializes. But remember Keep it Simple Stupid
