Reddit user british_spy is obviously some sort of magician, or has made a pact with the devil, because look at this scarf:
It’s double knit, which is tedious but not super crazy, but it’s non-reversible. There’s a trebel clef on one side and a bass clef on the other. And while I understand the theory of the technique, the actual implementation is more like witchcraft to me. Not only that but the whole thing was knit lengthwise in order to get nice crisp vertical lines on the notes. So not only are they good at sorcery, but they are also a lot better at counting than I am.