Voigt created an algorithm by which to represent the characteristics of the plants, such as color and height, and produced a series of sculptures entitled Botanic Code consisting of bands of painted aluminum rods that lean against a wall. (vernissage.tv)
They include the use of bio feedback, synthesizer, sampled world music, cat purrs, aluminum rods striking the ground and original poetry. (smallworldmfg.info)
Exemplary of this, works on view at Dia: Chelsea range from Arista, 1968, an unstretched canvas stapled to the wall (Gallery 2, east wall), to Pair Navigation, 1984/2002, resting on a wooden panel elevated on aluminum rods parallel to the floor (Gallery 2, north wall). (italianmodernart.org)