I think at first we can decide here a few things we'd like to see/make, and then figure out if it'll take both of us, or just one of us, then if it takes both, decide if we want to have to make it into two posts, or just say that one being goes along with the other in the same post. For example. Your guy wants to make "Sound" a thing or "Hearing". I agree and I would give you permission to say that my guy goes along with the idea, and you can write about how we make it, in any amount of detail you like. Or, we can decide on a strong of thing, like stuff that goes together. Sound, hearing, voice, things to make noise with, things to make sound with, things to form voices, and weave them all at once in a beautiful pageantry of either one person's post, or a kind of back and forth thing, each of us writing about a couple of those things.