In the essay ‘Judd's Walking Boxes’ musician and artist Travis Austin rethinks the role sound and movement play within Donald Judd's 100 untitled works in mill aluminum.

(excerpt)
*Auditory perception dissolves visually-based epistemologies that are foundational to the Western art-historical canon. Where Judd takes a step from painting into real space, sound art takes another and surpasses empirical individuals. Judd said of his own art, “There should be no movement, why should a static object imitate movement?” Now that we can hear a Judd piece, we know that it is moving. The objects and spaces he created are not static.*