So, in explaining transposing songs from electro-techno-pop a la the Postal Service to acoustic guitar a la sensitive boy rock I came up with this:
"The bass and the drums are more the steel and structure of the building, but you don't have to transcribe them. You can get away with the extraneous material to give an impression of what the complete song would sound like… more like the musical sheet rock. Yes. Guitar is just a big pile of sheet rock."