Ivor Darreg
Brief Bio by Jonathan Glasier
Ivor Darreg was born and raised to age eighteen by his parents in Portland, Oregon. Ivor’s father was editor of a Catholic weekly in the Northwest, and there was plenty of opportunity for intellectual pursuits. At the age of seven, Ivor started playing the piano. His interest was fanned by his artistic mother (an oil painter), but his father never understood how important Ivor’s music was to him. From age eight, Ivor helped with the proofing of the weekly and was already reading a wide range of material by the age of ten.
It was at this time that Ivor began to develop his interest in foreign languages. Ivor’s father was on the textbook commission, and Dr. Schmidt, a friend of his father who was a professor of languages, taught Ivor German. Because of his father’s interest in French history, Ivor was exposed to the French language, and at age twelve, his mother was learning sculpture from a Russian, and Ivor learned the fundamentals of the Russian language. At fourteen, Ivor met the people who ran the Esperanto club of Portland, and at twenty-three he learned Spanish. Throughout the years, Ivor has done translations for a number of people, and his language prowess has often helped the editors of Interval.
But it was music that was to be the focus of this brilliant young man, and being of scientific bent, he was interested in the hows and whys of the nature of same. At age fourteen, Ivor began playing the cello, and his first trials at composition had already been tried by that time. As his interest and dedication to music grew, the rift between Ivor and his father grew, so that by the time Ivor was seventeen, he and his mother made a split from his father and there was very little contact thereafter. Ivor and his mother moved to San Francisco to rooming houses and hotels, and by this time Ivor had changed his name from Girard to Darreg (sort of a retrograde). Both Ivor’s father and his uncle, who was a bishop in Great Falls, Montana, had visions of Ivor being a priest and carrying on in the family religious tradition, but Ivor’s heart was elsewhere.
Ivor’s interest in the new field of electronics was growing at this time. It began when, at age eleven, Ivor heard the theremin played on the radio. At age fourteen he met a man with a ham radio licence and began learning about the fundamentals of electronics. This interest was fueled by magazines, acquaintances, and meetings with the Portland Ham Radio Club. Practicing with oscillators and listening to ring modulator effects spurred an interest that culminated in the building of the Electric Keyboard Oboe.
Instruments
Recordings & Media
Articles & Writing
Ivor Darreg’s List, October 1949: Electronics Workshop Tasks Ivor Darreg, 1949 Oct
List of Tape Compositions by Ivor Darreg, Up to March 1967 Ivor Darreg, 1967 Mar
We Dare to Compare: List of Comparisons of Different EDO’s Ivor Darreg, 1988 Jul
Using Two-Part Counterpoint for Non-Twelve-Tone Music Ivor Darreg, 1989 Jan
All Systems Go by Ivor Darreg, Xenharmonic Frontier Ivor Darreg, 1990 Jan
Darreg ARRAY Diagram, Op. 10 Cipher, rear view, c. 1995 Ivor Darreg, 1995 Jan
Note from Erv Wilson to Ivor Darreg, Logarithms to the Base 2 of Numbers 1-64 Erv Wilson, 1964 Oct
Brian Hartzler. ‘Longing’ (origin unsure). Guitar composition, c.1976. Brian Hartzler, 1976 Jan
Ivor Darreg Bio and Comment on Russolo Ivor Darreg
Ivor Darreg’s More Recent Musical Publications Ivor Darreg
Ivor Darreg Tapes That Explore Ivor Darreg
List of References on Tuning Systems and Scales Ivor Darreg
EDOs 5–64: Major thirds analysis by Dave Hill Dave Hill
CD List: Role of Note Frequency Ratios in Musical Harmonies – Dave Hill Dave Hill
Fifths (5-64 edo) by Dave Hill Dave Hill
Major Thirds (5-64 EDO) by Dave Hill Dave Hill
Letters
Patent (image partially destroyed) for a Musical Instrument by Erv Wilson Erv Wilson → Ivor Darreg, 1962 Jan
Letter from Ivor Darreg to Erv Wilson Ivor Darreg → Erv Wilson, 1962 Feb
Letter, Ervin Wilson to Ivor Darreg Erv Wilson → Ivor Darreg, 1962 Mar
Letter, Ervin Wilson to Ivor Darreg Erv Wilson → Ivor Darreg, 1962 Apr
Letter, Ervin Wilson to Ivor Darreg Erv Wilson → Ivor Darreg, 1962 Jun- Letter from Ivor Darreg to Erv Wilson and Tillman Schafer Ivor Darreg → Erv Wilson, 1962 Jun
Letter, Ervin Wilson to Ivor Darreg Erv Wilson → Ivor Darreg, 1962 Jul
Letter, Ervin Wilson to Ivor Darreg Erv Wilson → Ivor Darreg, 1962 Oct
Letter, Ervin Wilson to Ivor Darreg Erv Wilson → Ivor Darreg, 1962 Nov
Letter, Ervin Wilson to Ivor Darreg Erv Wilson → Ivor Darreg, 1962 Dec
Letter, Ervin Wilson to Ivor Darreg Erv Wilson → Ivor Darreg, 1962 Dec
Letter from Erv Wilson to Ivor Darreg Erv Wilson → Ivor Darreg, 1963 Apr
Letter from Erv Wilson to Ivor Darreg Erv Wilson → Ivor Darreg, 1963 Jan
Letter from Ivor Darreg to Erv Wilson Ivor Darreg → Erv Wilson, 1963 Jan
Letter from Ivor Darreg to Erv Wilson, p2 Ivor Darreg → Erv Wilson, 1963 Jan
Letter from Ivor Darreg to Erv Wilson Ivor Darreg → Erv Wilson, 1963 Feb
Letter from Erv Wilson to Ivor Darreg Erv Wilson → Ivor Darreg, 1963 Feb
Letter from Ivor Darreg to Erv Wilson Ivor Darreg → Erv Wilson, 1963 Feb
Letter from Ivor Darreg to Erv Wilson Ivor Darreg → Erv Wilson, 1963 Feb
Letter from Erv Wilson to Ivor Darreg Erv Wilson → Ivor Darreg, 1963 Mar
Letter from Erv Wilson to Ivor Darreg Erv Wilson → Ivor Darreg, 1963 Mar
Letter from Ivor Darreg to Erv Wilson Ivor Darreg → Erv Wilson, 1963 Mar
Letter from Ivor Darreg to Erv Wilson Ivor Darreg → Erv Wilson, 1963 Apr
Letter from Ivor Darreg to Erv Wilson Ivor Darreg → Erv Wilson, 1963 Apr
Letter from Erv Wilson to Ivor Darreg Erv Wilson → Ivor Darreg, 1963 May
Letter from Ivor Darreg to Erv Wilson Ivor Darreg → Erv Wilson, 1963 Jun
Letter from Erv Wilson to Ivor Darreg Erv Wilson → Ivor Darreg, 1963 Sep
Letter from Erv Wilson to Ivor Darreg Erv Wilson → Ivor Darreg, 1963 Dec
Note from Erv Wilson to Ivor Darreg, Logarithms to the Base 2 of Numbers 1-64 Erv Wilson → Ivor Darreg, 1964 Oct
Letter-Erv-Wison-to-Ivor-Darreg-1964_11_02-Experimental-Graph-Notationfor-41-temper-or-system-o Erv Wilson → Ivor Darreg, 1964 Nov
Letter from Cris Forster to Ivor Darreg, August 1978 Cris Forster → Ivor Darreg, 1978 Aug
Tillman Schafer Christmas 1981 Family Letter Tillman Schafer → Ivor Darreg, 1981 Dec
Stephen Goodman letter to Ivor Darreg, May 12, 1983 Stephen Goodman → Ivor Darreg, 1983 May
Dave Hill Letter to Ivor Darreg, December 29, 1987 Dave Hill → Ivor Darreg, 1987 Dec
Letter to Lou Harrison from Ivor Darreg, January 23, 1989 Ivor Darreg → Lou Harrison, 1989 Jan
Dave Hill Letter to Ivor Darreg, March 1989 Dave Hill → Ivor Darreg, 1989 Mar
Dave Hill Letter to Ivor Darreg, September 1989 Dave Hill → Ivor Darreg, 1989 Sep
Dave Hill Letter to Ivor Darreg, October 1989 Dave Hill → Ivor Darreg, 1989 Oct
Letter from Denny Genovese to Ivor Darreg regarding just intonation scale Denny Genovese → Ivor Darreg, 1989 Nov
Letter from Denny Genovese to Ivor Darreg, November 1989 Denny Genovese → Ivor Darreg, 1989 Nov
Letter from Ivor Darreg to Denny Genovese, June 3, 1991 Ivor Darreg → Denny Genovese, 1991 Jun
Letter from Ivor Darreg to Denny Genovese, September 3, 1991 Ivor Darreg → Denny Genovese, 1991 Sep
Letter from Ivor Darreg to Denny Genovese Ivor Darreg → Denny Genovese, 1991 Oct
Letter from Denny Genovese to Ivor Darreg, November 1991 Denny Genovese → Ivor Darreg, 1991 Nov
Letter from Ivor Darreg to Denny Genovese, November 19, 1991 Ivor Darreg → Denny Genovese, 1991 Nov
Letter from Brink McGoogy to Ivor Darreg Brink McGoogy → Ivor Darreg, 1991 Nov
Brink McGoogy Letter to Ivor Darreg, November 1993 Brink McGoogy → Ivor Darreg, 1993 Nov
Photos
Performances & Exhibitions
Glen Prior Concert, Los Angeles City College, October 6, 1977 1977 Oct
Interval Foundation Presents: The Microtonal Music of the Future Concert, 1979 1979 Jul
1979-08-12 LA Times Calendar ‘Sound’ Show at LAICA Suzanne Muchnic, 1979 Aug
Jo Ann Smith. ‘New World Concerts.’ Sound exhibit review, LAICA, 1981. Jo Ann Smith, 1981 Jan
Concert Review, “Microtonal” by Newband, 29 April, 1982 with note from Ivor Darreg in margin Edward Rothstein, 1982 Apr
Brand Library Concert: Ivor Darreg and Erv Wilson. Interval Magazine V.II #2–3 1986 Dec
Interval Players Summit Laboratories Concert Julian CA 1988 1988 Aug
Ain’t Misbehavin’ Bang on a Can American Festival of Microtonal Music, by Kyle Gann Kyle Gann, 1994 Apr
Sonic Arts Gallery II Concert Program: Brian McLaren, Jonathan Glasier, 1994 1994 Oct
Compositions | Scores
Brian Hartzler. ‘Longing’ (origin unsure). Guitar composition, c.1976. Brian Hartzler, 1976 Jan
Prelude for Guitar With 19 Frets Per Octave Ivor Darreg, 1976 Jan
Mentioned in...
Viking Song example from Icelandic source Eggert Stefansson, 1933 Feb
Interval_a_Microtonal_Newsletter_Vol_I_no.1 1970 Jan
Interval Interview With French Composer Pierre-Jean Croset and His Lyra Jonathan Glasier, 1984 Jan
Ivor Darreg Obituary, San Diego Union-Tribune, February 16, 1994 1994 Feb
interval-journal-1
Marching to a Different Ratio. Computer Music Journal Vol. II No. 2, p. 7-8 Curtis Abbott
Some Quarter-Tone Impressions by Charles Ives (Ivor Darreg notes) Charles Ives
The Nineteen-Tone Instruments of W.A. Piehl and Tillman Schafer
Brand Library Concert: Ivor Darreg and Erv Wilson. Interval Magazine Vol. II No. 2-3
Computer Music Journal Vol. II No. 2: Marching to a Different Ratio Curtis Abbott
Ivor Darreg Bio by Jonathan Glasier Jonathan Glasier
List of Musical Compositions by Ivor Darreg
Ivor Darreg Selected Publications List
EDOs 5–64: Major thirds analysis by Dave Hill Dave Hill
CD List: Role of Note Frequency Ratios in Musical Harmonies – Dave Hill Dave Hill
Fifths (5-64 edo) by Dave Hill Dave Hill
Major Thirds (5-64 EDO) by Dave Hill Dave Hill
Other
Viking Song example from Icelandic source Eggert Stefansson, 1933 Feb
List of Tape Compositions by Ivor Darreg, Up to March 1967 Ivor Darreg, 1967 Mar
Ivor Darreg Obituary, San Diego Union-Tribune, February 16, 1994 1994 Feb
Ivor Darreg Bio by Jonathan Glasier Jonathan Glasier
List of Musical Compositions by Ivor Darreg
Ivor Darreg Selected Publications List
Ivor Darreg Tapes That Explore Ivor Darreg
List of References on Tuning Systems and Scales Ivor Darreg