>>5651123 (pp)
Well… again, it's your key and it's a skeleton key.
However you can most clearly focus the "tone" is how you should approach it in the beginning.
Left brain… right brain… whatever works for you.
Being able to feel the desired frequency is actually something I hadn't really considered adding in since this all started out in a dream/mental-scape concerning heart/memory/mind castles/houses/palaces.
Not only "how is it set up", but how do the doors work?
Assumedly, some would lock… how does the mechanism function?
Do you need multiple keys? A master key?
How do the doors even work? Straightforward or more like Portal ooooor…
I landed on: A skeleton key, where the frequency is the ridges that fumble the tumbler, and it also acts as the opening mechanism.
The key itself creates the door it unlocks.
Kinda P=NP, The Tardis, and Stargate smushed together.
Also led to a fun theory about the differences between Doc Brown's car, John Titor's device, the Tardis, and time travel in relation to windows vs enclosure.
The core that is surrounded by the Tardis, is effectively the center of "time/space".
Or you could say, that's where the Tardis "resides", considering that the Tardis doesn't actually "move".