"You have all your individual tracks at the bottom, you have your sub buss tracks above that and at the top is the main or master buss that sends the total mix out. "

.. I've always visualized these as top to bottom, not bottom up .. and the end result drops out the bottom. Kinda like an upside-down pyramid.. or like a food processor!

Shove everything in the top funnel and it comes out the bottom all combined.

Course it ain't that simple, but that's the flow I see in my head; funny how some of us think 'up' and some of us 'down' ..
I relate it as 'down the signal chain' so I know why I think like this.

I've also heard the term 'pyramid' mixing so (I think) I see why you may see it the other way.
It's all good, just an observation. wink



Make your sound your own!
.. I do not work here, but the benefits are still awesome