I found that a great pop-culture metaphor in recognizing the intertwining of the Liberal Arts division of Trivium and Quadrivium is found in Raiders of the Lost Ark.
If you recall, the self-serving empire builders only have one side of the headpiece,
We might refer to as the Trivium (Grammar, Logic, Rhetoric) if taught in a skill building manner., It provides the warning not to disturb the Ark, but that it is to be placee on a staff that is 6 kadams high.
These instructions do not require any thought on the part of the reader, or why we should not disturb the Ark. It is dogmatic
...BUT in addition to the "Trivium" side, Indy and Sallah also have the side which deals with the Quadrivium: For it is concerned with measurement (ratio) as well as an ethical reasoning as to why one should that measurement is made:
Take back one Kadam in honor of the Hebrew God whose Ark this is.
Likewise we have this visual representation of Harmonia with the “School of Athens” painting The foundation is built with visual representations the Quadrivium (Arithmetic, Music, Geometry, Astronomy) a view which lasted for nearly 2,000 years before Iohannes Kepler applied experimental methods to each of those disciplines in his Harmonices Mundi (we usually only refer to his Astronomy findings but Book III is all about music). – Nonetheless the foundational study of the Quadrivium is found in Plato’s Timaeus (which he is shown holding at the pinnacle – standing next to Aristotle who is holding the Nicomachean Ethics)
So with that, I request that you take some time to read this recent 10-page article by John McInnis of Dordt College who provides what I believe to be one of the best introductions for Classical Education enthusiasts to gain a clearer understanding of this Classical tradition which intertwines Music Ethics and Science. (MacInnis does contextualize how Augustine was adapting Classical educaiton for a Christian audience, and MacInnis himself is teaching at a Christian school, but the essence of Classical Philosophy is still fundamental)
Access his article here: http://www.mdpi.com/2077-1444/6/1/211