Pedagogical exercise by R. Murray Schaffer, found on page 18 of his book, Ear Cleaning (1967). In this exercise, students are assigned 2, then 3, and then 4 notes, on which they are to improvise as creatively as possible.
This is a photograph of a page from Schafer's Creative Music Notation, in which he discusses the idea that a particular musical texture (which he titles "confusions") can be notated in a musical score.
This is a photograph of a page from one of Schafer's books, Creative Music Education. It demonstrates Schafer's belief that musical texture can be notated, and shows two textures that Schafer featured in his compositions-he titled these "clouds" and…
This is a page from one of Schafer's books, Creative Music Education. This page features an example of Schafer's sight-singing exercises designed for school-aged students, and also includes a short letter from a music teacher.