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The Xenharmonicon was a magazine that ran from 1974 to 1998 that had a focus on experimental and microtonal music. There is no known digital copies of the magazine but there is a archive of the articles that were originally published in it.

Volume 1 (Spring 1974)

Editorial and Prospectus

  John Chalmers

Four Items

  Lou Harrison

The Bosanquetian 7-Rank Keyboard After Poole and Brown

  Erv Wilson

Xenharmonic Bulletin No. 1

  Ivor Darreg

Xenharmonic Bulletin No. 2

  Ivor Darreg

Harmonic Series - Normal Overtones (chart)

  Ivor Darreg

Harmonic Series Compared with Quartertone and 12-tone Tempered Scales (chart)

  Ivor Darreg

List of Intervals Relevant to the Theory of Tuning (chart)

  Ivor Darreg

Selections from Compositions by Ivor Darreg (score)

  Ivor Darreg

Computer Generated Tuning Tables (chart)

  John Chalmers 

Volume 2 (Fall 1974)

Notes & Comments

  John Chalmers

The Evolutionary Music System

  Thomas Stone

Bosanquet - A Bridge - A Doorway to Dialog

  Erv Wilson

A Classification of Tonal Systems, and a Proposed Standardization of Signatures

  Erv Wilson

At the Tomb of Charles Ives (score)

  Lou Harrison

Xenharmonic Bulletin No. 3

  Ivor Darreg

Guitar Fretting Table 19-tone (chart)

  Ivor Darreg

Some New Linear Temperaments

  John Chalmers 

Volume 3 (Spring 1975)

Notes & Comments

  John H. Chalmers, Jr.

Xenharmonic Bulletin No. 4

  Ivor Darreg

On the Enharmonic Tetrachord (score)

  Ivor Darreg

Prelude for Guitar, in E Minor (score)

  Ivor Darreg

An American Gamelan

  William Colvig

On This Thing Called Scalatron

  Richard J. Harasek

Scalatron Brochure (advertisement)

  Richard J. Harasek

Well Tempered Notes

  Richard J. Harasek

The Generalized Keyboard Scalatron

  George Secor

Unified Visualization and Notation of Xenharmonic Systems

  George Secor

A New Look at the Partch Monophonic Fabric

  George Secor

A Phrase for Arion's Leap (score)

  Lou Harrison

Preface to “Two Phrases in Free Style”

  Kerry G. Lewis

Phrase in Free Style #1 (score)

  Kerry G. Lewis

Phrase in Free Style #2 (score)

  Kerry G. Lewis

The Application of Rothenberg's Pattern Recognition Model to the Structure of Tetrachords and Tetrachordal Scales

  John H. Chalmers, Jr.

On Linear Notations and the Bosanquet Keyboard

  Erv Wilson

On the Development of Intonational Systems by Extended Linear Mapping

  Erv Wilson 

Volume 4 (Fall 1975)

Notes and Comments

  John H. Chalmers, Jr.

Multiple Division of the Octave and the Tonal Resources of 19-tone Temperament: Chapter 11 - Joseph Yasser

  M. Joel Mandelbaum

Xenharmonic Bulletin No. 5

  Ivor Darreg

Ivor Darreg's Musical Compositions Conceived for the Medium of Tape Recording (chart)

  Ivor Darreg

Xenharmonic Bulletin No. 6

  Ivor Darreg

Episodes in the 17-Tone System (score)

  Ivor Darreg

Well Tempered Notes

  Richard Harasek

Specifications of the Secor Generalized Keyboard Scalatron

  George Secor

Braid Piece (score)

  Barbara Benary

Tonal Incarnations

  Barbara Benary

Item: Five-tone, Six-tone, & Seven-tone Modal Forms within the Traditional Matrix of Two Tetrachords Separated by a Nine to Eight

  Lou Harrison

Cyclic Scales

  John H. Chalmers, Jr.

The 12+7+12=31 Geometry Applied to 3 Percussion Keyboards

  Erv Wilson

19-tone Clavichord (advertisement)

  Erv Wilson 

Volume 5 (Spring 1976)

Notes & Comments

  John H. Chalmers, Jr.

The Golden Net (score)

  Douglas Walker

Xenharmonic Bulletin No. 7

  Ivor Darreg

Colorless Green Ideas Sleep Furiously (score)

  Ivor Darreg

A Symposium in the Study of Tricesimoprimal Music (advertisement)

  Robert Chamberlin

The Pitches of Meantone Assigned to the 19-tone Generalized Keyboard (chart)

  Erv Wilson

Some Details Concerning The 19-Tone Clavichord

  Jay Scott Hackleman

Notes and Comments

  George Secor

The Trouble with Equal Temperaments

  George Secor

An Approach to the Construction of Microtonal Valved Brass Instruments - The French Horn

  George Secor

Incidental Music for Corneille's “Cinna” (score)

  Lou Harrison 

Volume 6 (Summer 1977)

Notes and Comments, Six

  John H. Chalmers, Jr.

Manual of Quartertone Harmony (Translated from the French by Ivor Darreg)

  Ivan Vyshnegradski

Piano Study #5 (for JPR) (score)

  Larry Polansky

Movement for Lou Harrison, for Two Violins (score)

  Larry Polansky

Eight Pieces for Harp in Ditone Diatonic (score)

  Larry London

Xenharmonic Bulletin No. 8

  Ivor Darreg

Three Short Preludes (score)

  Douglas Walker

“The Dayspring,” music for 19-tone clavichord (score)

  Douglas Walker

19-Tone Scale for the Clavichord-19 (chart)

  Erv Wilson

31 Tone Meantone Tuning - Link Between Past and Future

  Herman Pedtke

Guitar with Interchangeable Fingerboards

  A. Peter Westbrook 

Volume 7+8 (Spring 1979)

Notes and Comments: Seven and Eight

  John H. Chalmers, Jr.

Introduction to Everything

  Cris Forster

Chrysalis

  Cris Forster

Harmonic/Melodic Canon IV

  Cris Forster

Diamond Marimba II

  Cris Forster

Ascent of the Phoenix (score)

  C. Forster

“… out of fathomless Dark/into limitless Light …” (score)

  Douglas Walker

Xenharmonic Bulletin No. 9

  Ivor Darreg

Anthracite Sweetheart (score)

  Brian Hartzler

A Short History of Thirty-One Tones to the Octave

  Martin Sweidel

Fantasia in 19-Tone Equal Temperament (score)

  Martin Sweidel

Fabio Colonna's Sambuca

  Lynn Wood Martin

Decimal Music

  Gary Morrison

Decadence (score)

  Gary Morrison

Item: Thoughts while Designing a Gamelan

  Lou Harrison

A Chart of All Superparticular Ratios from 2/1 through 81/80 with Value (or Size) in Cents (chart)

  William Colvig

Four Duets for Psaltery and Harp (score)

  David Rosenthal

Helix Song (score)

  David Rosenthal

Four Pieces in Didymus's Chromatic (score)

  Larry London

Movement for Andréa Smith (My Funny Valentine for Just String Quartet) (score)

  Larry Polansky

Binary Flute

  Denny Genovese

Web of Fifths and Thirds (chart)

  Scott Makeig

Polychordal Arrays of MOS Scales

  John H. Chalmers, Jr.

A Collection of Scales With Nineteen Tones

  John H. Chalmers, Jr.

Some Additional Nineteen-tone Scales

  John H. Chalmers, Jr. 

Volume 9 (1986)

Notes and Comments

  Daniel J. Wolf

Tritriadic Scales with Seven Tones

  John H. Chalmers, Jr.

A Kind Word or Two About Alexander John Ellis on the Occasion of the Centennial 1885-1985 of the Second English Edition of His Translation of and Appendix to Helmholtz's Sensations of Tone

  Ivor Darreg

Without Frets (I): General Considerations

  David Feldman

Going Places (score)

  David Feldman

Combination-Product Set Patterns

  Kraig Grady

String Quartet (1965-1975), I.S.I.M (score)

  Douglas Leedy

Will You Miss Me (score)

  Larry Polansky

The Marwa Permutations

  Ervin M. Wilson

The Melodic Version (1984) of The Second Dream of the High-Tension Line Stepdown Transformer from The Four Dreams of China (1962): Notes by the Composer

  La Monte Young 

Volume 10 (1987)

Notes and Comments

  D. J. Wolf

Monochordal Interpretations of Propositions in Euclid's Elements

  Jon Barlow

Tritriadic Scales with Seven Tones, Part Two: Derived Forms and Structural Properties

  John H. Chalmers, Jr.

Table of Errors in Equally-Tempered Intervals (chart)

  Ivor Darreg

Four Bass Studies (what to do when the night comes…) (score)

  Larry Polansky

The Purvi Modulations

  Ervin M. Wilson

Trio: The Sands (music that doesn't bother) (score)

  Daniel Wolf 

Volume 11 (1989)

Notes and Comments

  Daniel J. Wolf 
  p. ii

Tetrachordal Scales and Complexes

  John H. Chalmers, Jr. 
  pp. 1-20

A Question of Microtonal Notation

  Ezra Sims 
  pp. 21-24

Speculum Pélogi

  D. J. Wolf 
  pp. 25-33

Mr. Cage, His Ghosts, and Cheap Imitation(s)

  Daniel J. Wolf 
  pp. 34-42

A Linear Twenty-Nine Tone Scale

  Jose L. Garcia 
  pp. 43-45

Notes on a New Marimba, its Tuning, and its Music

  Erv Wilson, Stephen Smith, and Kraig Grady 
  pp. 46-60

Review of The Science of Musical Sound, by John R. Pierce; and Lutes, Viols and Temperaments, by Mark Lindley

  Douglas Leedy 
  pp. 61-67

Movement for Lou Harrison, for just bass quartet (score)

  Larry Polansky 
  pp. 68-89

Xenharmonikon I through Xenharmonikon X, an Index (chart)

  Daniel J. Wolf 
  pp. 90-93 

Volume 12 (Spring 1989)

Notes and Comments

  Daniel J. Wolf 
  p. ii

D'alessandro, Like a Hurricane

  Erv Wilson 
  pp. 1-39

Tritriadic Scales with Seven Tones. Part Three: The M→T and D→M Matrices

  John H. Chalmers, Jr. 
  pp. 40-68

Development of a 53-tone Keyboard Layout

  Larry A. Hanson 
  pp. 69-87

Supplement: Makers of Instruments, et cetera, Part 1 (advertisement)

  Daniel J. Wolf 
  pp. 88-89 

Volume 13 (Spring 1991)

Notes and Comments

  John H. Chalmers, Jr. 
  pp. 1-3

Information and Guidelines for Subscribers and Contributors to Xenharmonikôn

  John H. Chalmers, Jr. 
  pp. 3-4

Biases in Xenharmonic Scales

  I. Darreg and B. McLaren 
  pp. 5-19

General Methods for Generating Musical Scales

  B. McLaren 
  pp. 20-44

Notes Towards Quasi-Tonal Treiskaidekaphilia

  Paul Rapoport 
  pp. 45-52

Three Approaches to Harmony in 13-TET

  John H. Chalmers, Jr. 
  pp. 53-64

Interactive Program - Just Modulations (computer program)

  Buzz Kimball 
  pp. 65-66

Season of Dust (score)

  Buzz Kimball 
  pp. 67-69

T1: california duet for trombone and trombonist (score)

  R. Marsanyi 
  pp. 70-76

Composing in Seven Equal

  Clem Fortuna 
  pp. 77-79

String Quartet in Seven-Equal (score)

  C. Fortuna 
  pp. 80-85

The Discovery of a 14-tone Scale

  Kraig Grady 
  pp. 86-89

A Graphical Technique for Finding Equally-Tempered Scales by Their Harmonic Resources

  Gary Morrison 
  pp. 90-94

Review of Selected Musical Compositions (1948-1972), by Adriaan Daniël Fokker, edited by Rudolf Rasch

  Douglas Leedy 
  pp. 95-99

Review of Pitch for the International Microtonalist, Vol. 1, No. 4, edited by Johnny Reinhard

  John H. Chalmers, Jr. 
  pp. 100-101

Review of Pitch, Pi, and Other Musical Paradoxes, by Charles E. H. Lucy

  John H. Chalmers, Jr. 
  pp. 102-103

Resources

  John H. Chalmers, Jr. 
  pp. 104-105 

Volume 14 (Spring 1993)

Notes & Comments

  John H. Chalmers, Jr. 
  pp. 1-2

Those Difficult Teens (and Other Microtonal Scales)

  B. McLaren 
  pp. 3-6

A Nostalgic Look at the 20s (& Other Microtonal Scales)

  B. McLaren 
  pp. 6-8

The Low Profile of Those Higher Divisions of the Octave

  B. McLaren 
  pp. 8-11

The Uses and Characteristics of Non-octave Scales

  B. McLaren 
  pp. 12-22

An Interview With Ivor Darreg About “The Xenharmonic Frontier”

  B. McLaren 
  pp. 23-39

An Analysis of Ivor Darreg's XF1, Volume 1, Number 12

  B. McLaren 
  pp. 40-49

Xenharmonic Frontier Vol. 1, No. 9: 21/oct (score)

  Ivor Darreg 
  pp. 50-52

Xenharmonic Bulletin No. 12

  Ivor Darreg 
  pp. 53-79

Horn (score)

  Larry Polansky 
  pp. 80-90

Epimores (score)

  Carter Scholz 
  pp. 91-92

An Imaginary Nocturne (score)

  Douglas Walker 
  pp. 93-108

limit19.c, a limit 19 calculator for just intonation music composition (computer program)

  Matthew Walker 
  pp. 109-113 

Volume 15 (Autumn 1993)

Notes & Comments 15

  John H. Chalmers, Jr. 
  pp. 1-2

The Tonality of the Golden Section

  Walter O'Connell 
  pp. 3-18

The Year of the Monkey

  Brink McGoogy 
  pp. 19-26

The Uses and Characteristics of Non-just Non-equal-tempered Scales

  B. McLaren 
  pp. 27-41

Circles of Fifths

  B. McLaren 
  pp. 42-51

9/Oct Piano Piece (score)

  B. McLaren 
  pp. 52-55

Giving Number a Voice

  Douglas Leedy 
  pp. 56-59

The Triadic Diamond, the Triadic Reversed Diamond and Their Constituent Tetrachords when D = 3/2

  John H. Chalmers 
  pp. 60-73

The Touch-Tone® Signal Pitches as Subsets of Stretched 14-Tone ET's

  John H. Chalmers 
  pp. 74-80

Cents and Non-Cents: Logarithmic Measures of Musical Interval Magnitude

  John H. Chalmers 
  pp. 81-95

Review of The Just Intonation Primer, by David B. Doty

  John H. Chalmers, Jr. 
  pp. 96-97

A Numerical Theory of Scale Invention

  Bruce R. Gilson 
  pp. 98-134 

Volume 16 (Autumn 1995)

Notes & Comments 16

  John H. Chalmers 
  pp. 1-3

In Memoriam Ivor Darreg

  John H. Chalmers 
  pp. 4-18

Ivor Darreg: An Interview About His Life and Work

  B. McLaren 
  pp. 19-35

Macrotonal Scales

  B. McLaren 
  pp. 36-44

More About Non-Octave Scales

  B. McLaren 
  pp. 45-53

An Interview with Ralph David Hill

  B. McLaren 
  pp. 54-60

The Notation of Equal Temperaments

  Paul Rapoport 
  pp. 61-84

34-Tone Notation System Based on Adjusted 17-Tone

  Gary Morrison 
  pp. 86-91

On the Nature of Working with Performers

  Kraig Grady 
  p. 92

Centaur - A 7-Limit 12 Tone Tuning (chart)

  K. Grady 
  p. 93

A Rhythmic Application of the Horagrams

  Kraig Grady 
  pp. 94-98

Drones 1994 #2: Old Commas Inverted and Revisited (score)

  Warren Burt 
  pp. 99-102

“COMMAS” Dec. 92-Jan. 93 for Electronic Keyboard (score)

  Warren Burt 
  p. 103

A Brief History of the Lambdoma and the Musical Properties of the Computer Program for the “Lambdoma Harmonic Keyboard”TM

  Barbara Hero 
  pp. 104-113

Notes on Mysteries

  Neil Haverstick 
  pp. 114-115

Mysteries (score)

  Neil Haverstick 
  pp. 116-117

Studien im Gebiet der reinen Stimmung (A Translation of Pages 8 to 18 by Daniel J. Wolf)

  Shohé Tanaka 
  pp. 118-125

Review of Principios de la Gama Dinámica, by Eduardo Sábat Garibaldi

  John Chalmers 
  pp. 126-127 

Volume 17 (Spring 1998)

Notes & Comments 17

  John H. Chalmers 
  pp. 1-3

Notes on Lattice: one approach to dynamic tuning

  Carter Scholz 
  pp. 4-8

34-ET Notation System Based on Major and Minor Thirds

  Larry A. Hanson 
  pp. 9-11

Tuning, Tonality and Twenty-Two-Tone Temperament

  Paul Erlich 
  pp. 12-40

The Musical Animal's Musical Adventures

  Heinz Bohlen 
  pp. 41-56

A Brief History of Microtonality in the Twentieth Century

  B. McLaren 
  pp. 57-110

The Number of 23-Prime-Limit Superparticular Ratios Less than 10,000,000

  John H. Chalmers 
  pp. 111-115

Pitch, Scale and Tuning in Rusty: A Fuzzy Logic Approach to the Tuning Problem

  Michael Saunders and Michael Greenhough 
  pp. 116-119

Review of On the Relations of Tone, by Martin Vogel

  Douglas Leedy 
  pp. 120-123

Letter to the Editor Heinz Bohlen p. 124

NOTES

Link to with Web Archive (snapshot from 2002) of the Xenharmonicon website 1)

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