John Grayson has a large presence in the 1960's-1970's but there is very little direct traces of his work that can be found online today. He published at least two books- Sound Sculpture 1) and Environments of musical sculpture you can build: Phase 1 2). In these books there is a large catalog of musical instruments he invented and built as well as extensive writings on sound sculpture and his philosophy of music.
From the intro of Sound Sculpture (1975)
John Grayson is a sound sculptor, university lecturer, experimental theatre producer, and farmer. He also occasionally produces television programs for the Canadian Broadcasting Corporation. Over the years he has organized and conducted numerous workshops, seminars, international conferences and exhibitions for a diverse range of institutions in such areas as: the theatre arts; perceptual awareness; computer art systems; sound sculpture; expanded music systems; and various facets of music education. He is currently the Managing Director of the Aesthetic Research Centre of Canada.
PART I: ESSAYS ON SOUND SCULPTURE
BERNARD BASCHET: Structurcs Sonores
FRANCOIS BASCHET:mStructures Sonores and the Future
A. VILLEMINOT:Sketches of Large Scale Baschet Sound Sculptures
HARRY BERTOIA: Sounding Sculptures
ALLAN KAPROW: Animation: Stephan Von Huene's Sound Sculptures
STEPHAN VON HUENE: Photo Album
DAVID JACOBS: Notebook
REINHOLD PIEPER MARXHAUSEN: Variations on the Theme for Listening to Door Knobs
CHARLES MATTOX: The Evolution of My Audio-Kinetic Sculptures
PART II: HERITAGES & ATTITUDES
HARRY PARTCH: Monophonic Just Intonation (excerpted)
HARRY PARTCH: No Barriers
LOU HARRISON: Lou Harrison's Music Primer (excerptcd)
GYORGY KEPES The New Landscape in Art and Science (excerpted)
R. MURRAY SCHAFER: The Graphics of Musical Thought
PART III: FUTURE DIRECTIONS
DAVID ROSENBOOM Vancouvcr Piece
WALTER WRIGHT: Videotape Kitchen Notes
DAVID ROTHENBERG: Visual Music - A New Art Form
JOHN CHOWNING: The Simulation of Moving Sound Sources (excerpted)
Corporeal Sound Sculpture
COREY FISCHER:Transitions
JOHN GRAYSON: A Sound Awareness Workshop
PART IV: PRACTICAL PROJECTS & POSSIBILITIES
WILLIAM COLVIG: A Western Gamelan
PAUL EARLS: Sounding Space: Drawing Room Music
IVOR DARREG: The Amplifying Clavichord
TONY PRICE: A Musical Carillon
A Concert of Factory Sirens and Steam Whistles
LUIS FRANGELLA: Rain Music II : A Large Scale Environmental Sound Sculpture
MAX DEAN: A Sound Activated Sound Sculpture
Sound Sewage
Selected Readings
A Request to Sound Sculptors