Nice retro-demo/motivation for "what's the point of protocols/abstraction layers"[0]. Use case argument for an add-on programmable logic array / micro controll

Nice retro-demo/motivation for "what's the point of protocols/abstraction layers"[0]. Use case argument for an add-on programmable logic array / micro controller board as security interface / non-standard to standard protocol translation. ---------------------------------------------------------------------------------- [0] : https://www.terryewell.com/m116/Docs/historyMIDI.pdf https://www.terryewell.com/m116/Docs/historyMIDI.pdf