This puzzle is notorious.
Another way someone found to do it was to count up the steps instead of using the tones:
If you're tone deaf, just count number of notes from the bottom. (8, 20, 23, 13, and 6, respectively, including the bottom as one)
That seems like a lot harder to me, but it's helped some people get past it.
Here's a YouTube of what's supposed to happen.
https://www.youtube.com/watch?v=qbB3N1CHo9IAround 7:10 is the start of the organ puzzle.
Around 10:50 is where he finishes entering the five tones and pulls the lever.
After that it shows how the book appears in the circular view screen.