 The work combines the electronically produced sounds of the Hammond organ with vocal sounds from the choir through ring modulation to produce transformations that in many places achieve distortions evoking wizardry (Frisius 2008, 167).Stockhausen's original idea had been to combine a choir with the tamtam from "Mikrophonie I" but the sounds proved too contrary, and so he settled on the Hammond organ instead .The text used is Helmut Heißenbüttel’s "nonsense" poem, "Einfache grammatische Meditationen" (Simple Grammatical Meditations), from "Textbuch 1" (Heißenbüttel 1960, 35–36).