E-set No. 1 is the initial piece from Phono-Markers, a folio of works for solo trombone. Like other recent works, Phono-Markers use cyclic data patterning to generate crystallographic forms. Phono-Markers are part of my on-going Smithson Project, a body of material for various sonic media inspired by the work, writings, and inspirations of visual artist Robert Smithson.