« Free music can be a musical form that is playing without pe-worked structure, without written music or chord changes. However, for free music to succeed, it must grow into free spiritual music which is not… a musical form ; it should be based off of a life form. It is not about just picking up an instrument and playing guided by math principles or emotion. It is emptying oneself and being, without a label on the music… »

William Parker Document Humanum 1975