while IFS=' ' read -r line; do
      if [[ "$line" == *"client"*"Launch Control"\* ]]; then
        device=$(echo "$line" | cut -d' ' -f2)
      fi
    done < <(aconnect -i)

    aseqdump -p ${device::-1} | while IFS=' ' read -r line; do
        if [[ "$line" == *"Note on"* ]]; then
            note=$(echo "$line" | grep -o "note [0-9]*" | cut -d' ' -f2)
            if [ "$note" == "9" ]; then
                wmctrl -s 8
            fi
        elif [[ "$line" == *"Control change"*"127" ]]; then
            note=$(echo "$line" | grep -o "controller [0-9]*" | cut -d' ' -f2)
            if [ "$note" == "114" ]; then
                # some macro
            fi
        fi
    done

Sure there are things like an Elgato StreamDeck that you can do similar things with but they still require you to move a hand from the keyboard.

I suppose it is similar to using voice control things like Alexa. Setting a timer by hand in the kitchen isn’t exactly hard but it is so much more convenient to do it by voice if your hands are covered in raw chicken juice or the like.