Tetrode: Quadriptych of Isometric Transformations
Thomas Brodhead – American, born 1968 – Tetrode: Quadriptych of Isometric Transformations –2016 – acrylic on canvas – 32" x 40" x 0.75" (81.28cm x 101.6cm x 1.91cm)
Perhaps suggesting the oscillating colors of a neutrino particle or the pulsar-pulsations of a neutron star (or perchance, more mundanely, the dental-drill sparks that would fly from your mouth during a botched apicoectomy), Tetrode presents the viewer with prismatic transformations of an entropic geometry. Graduated chroma of red and blue are coupled with gray-scale complements that likewise advance and retreat in value, with the individual colors and their larger containing figure subjected to the compositional devices of a Baroque fugue: inversion, retrograde, and retrograde-inversion. The resulting quadriptych may visually echo the puzzle canons of Bach’s Musical Offering, in which melodies will self-harmonize if played against themselves while turned upside-down and backwards, and then when executed at staggered intervals of both pitch and time.