Extropian music is music that Extropians like ! Glass, Fripp and Eno, and Riley, along with other music, has a psychological aspect, the music is engineereed for a psychological reaction. The use of music for creative purposes is Extropian. It is Extropian to want a concentration of the mind, bringing power like Sufi or other sacred music. The use or drone, repitition, and ostinato have mind altering qualities if you 'Listen' to them.