Dieter Schnebel
«Mo-No: Music to Read»

This reading-book and picture-book offers neither literature nor simply art for the eye, confined to the page. Rather 'mo-no' is music, a music to read; more precisely: music for a reader. The reading of the book is intended to stimulate music in the listeners head. In reading the music he is alone: mono; as such he becomes the performer of the music, makes music for himself.
This book contains in part texts intended to lead to the hearing and linking of passing external sounds. [...]
In parts the text describe sounds which are only to be imagined, to be produced in the readers mind [...]
In addition the book contains notes. Admittedly not of the kind one is accustomed to (that one could play) rather the notes are to be viewed, thus leading to the formation of 'imaginary landscapes'. [...]
So the book sets out to lead the reading hearer (the hearing reader) to the music sounds which surround us, but also to bring him into direct contact with that imaginary music which always arises within us, from sounds both real and unreal.

From: Dieter Schnebel: Mo-No: Music to Read, Köln 1969.