'The essential aspect of MIXTUR is, first of all, the transformation of the familiar orchestra sound into a new, magical sound world. It is an unbelievable experience, for example, to see and hear strings bowing a held note and to perceive simultaneously how this note slowly moves away from itself in a glissando, the pulse speeds up and a wonderful timbre spectrum develops. Orchestra musicians are astonished when they hear their played notes being modulated timbrally, melodically, rhythmically, and dynamically."
-Karlheinz Stockhausen from his notes on MIXTUR-
"There is never an end...There is always new sounds to imagine; new feelings to get at. And always, there is the need to keep purifying these feelings and sounds so that we can really see what we've discovered in its pure state."