The Xenharmonicon is a journal with a focus of experimental music and microtonal music. The magazine is published by Bill Alves and John H. Chalmers along with a curatorial board.
The Xenharmonicon was a journal that ran from 1974 to 1998 that had a focus on experimental and microtonal music. The magazine was published by John H. Chalmers through the University of California San Diego. There is no known digital copies of the magazine but there is an archive of the articles that were originally published in it.
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
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
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
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
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
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
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.
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
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
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
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
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
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
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
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
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