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The ondes Martenot ( ; , "Martenot waves") or ondes musicales ("musical waves") is an early electronic musical instrument. It is played with a
keyboard Keyboard may refer to: Text input * Keyboard, part of a typewriter * Computer keyboard ** Keyboard layout, the software control of computer keyboards and their mapping ** Keyboard technology, computer keyboard hardware and firmware Music * Mu ...
or by moving a ring along a wire, creating "wavering" sounds similar to a theremin. A player of the ondes Martenot is called an ondist. The ondes Martenot was invented in 1928 by the French inventor
Maurice Martenot Maurice Louis Eugène Martenot (; October 14, 1898 – October 8, 1980) was a French cellist, a radio telegrapher during the first World War, and an inventor. Born in Paris, he is best known for his invention of the ondes Martenot, an instrument ...
. Martenot was inspired by the accidental overlaps of tones between military radio oscillators, and wanted to create an instrument with the expressiveness of the
cello The cello ( ; plural ''celli'' or ''cellos'') or violoncello ( ; ) is a bowed (sometimes plucked and occasionally hit) string instrument of the violin family. Its four strings are usually tuned in perfect fifths: from low to high, C2, G2, ...
. The ondes Martenot is used in more than 100 orchestral compositions. The French composer Olivier Messiaen used it in pieces such as his 1949 symphony '' Turangalîla-Symphonie,'' and his sister-in-law
Jeanne Loriod Jeanne Blanche Armande Loriod (13 July 1928 – 3 August 2001) was a French musician, regarded as the world's leading exponent of the ondes Martenot, an early electronic instrument. Born in Houilles, Yvelines, she was the younger sister of Yvonne ...
was a celebrated player of the instrument. It appears in numerous film and television soundtracks, particularly
science fiction Science fiction (sometimes shortened to Sci-Fi or SF) is a genre of speculative fiction which typically deals with imaginative and futuristic concepts such as advanced science and technology, space exploration, time travel, parallel uni ...
and
horror film Horror is a film genre that seeks to elicit fear or disgust in its audience for entertainment purposes. Horror films often explore dark subject matter and may deal with transgressive topics or themes. Broad elements include monsters, ap ...
s. Jonny Greenwood of the English rock band Radiohead is credited with bringing the ondes to a larger modern audience. It has also been used by pop acts such as
Daft Punk Daft Punk were a French electronic music duo formed in 1993 in Paris by Thomas Bangalter and Guy-Manuel de Homem-Christo. Widely regarded as one of the most influential acts in dance music history, they achieved popularity in the late 1990s as p ...
, Gaudi and Damon Albarn.


History

The ondes Martenot (French for "Martenot waves") is one of the earliest electronic instruments, patented in the same year as another early electronic instrument, the theremin. It was invented in 1928 by French cellist
Maurice Martenot Maurice Louis Eugène Martenot (; October 14, 1898 – October 8, 1980) was a French cellist, a radio telegrapher during the first World War, and an inventor. Born in Paris, he is best known for his invention of the ondes Martenot, an instrument ...
. Martenot had been a radio operator during
World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was List of wars and anthropogenic disasters by death toll, one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, ...
, and developed the ondes Martenot in an attempt to replicate the accidental overlaps of tones between military radio oscillators. He hoped to bring musical expressivity of the
cello The cello ( ; plural ''celli'' or ''cellos'') or violoncello ( ; ) is a bowed (sometimes plucked and occasionally hit) string instrument of the violin family. Its four strings are usually tuned in perfect fifths: from low to high, C2, G2, ...
to his new instrument. According to ''The Guardian'', the ondes Martenot visually resembles a cross between an organ and a theremin. Martenot first demonstrated the ondes Martenot on April 20, 1928, performing Dimitrios Levidis's '' Poème symphonique'' at the
Paris Opera The Paris Opera (, ) is the primary opera and ballet company of France. It was founded in 1669 by Louis XIV as the , and shortly thereafter was placed under the leadership of Jean-Baptiste Lully and officially renamed the , but continued to be ...
. He embarked on a number of performance tours to promote it, beginning in Europe before going to New York. In 1930, he performed with the Philadelphia Orchestra, after which he embarked on a world tour. In 1937, the ondes Martenot was displayed at the Exposition Internationale de Paris with concerts and demonstrations in an ensemble setting with up to twelve ondists performing together at a time. Beginning in 1947, the ondes Martenot was taught at the Paris Conservatory, with Martenot as the first teacher. Units were manufactured individually to order. Over the following years, Martenot produced several new models, introducing the ability to produce vibrato by moving the keys, a feature adapted in the 1970s by some
Yamaha GX-1 The Yamaha GX-1, first released as Electone GX-707, is an analog polyphonic synthesizer organ developed by Yamaha as a test bed for later consumer synths and Electone series organs for stage and home use. The GX-1 has four synthesizer "ranks" or ...
synthesisers. Martenot was uninterested in mass-producing the instrument, which may have contributed to its decline in popularity following initial interest. Jean-Louis Martenot, Maurice Martenot's son, created new ondes Martenot models. In 2000, Jonny Greenwood of the English rock band Radiohead commissioned the synthesiser company Analogue Systems to develop a replica of the ondes Martenot, as he was nervous about damaging his instrument on tour. The replica, called the French Connection, imitates the ondes Martenot's control mechanism, but does not generate sound; instead, it may be used to control an external oscillator.


Sounds and technique

The ondes Martenot is unique among electronic musical instruments in its methods of control. The ondes Martenot can be played with a metal ring worn on the right index finger. Sliding the ring along a wire produces "theremin-like" tones, generated by oscillations in
vacuum tube A vacuum tube, electron tube, valve (British usage), or tube (North America), is a device that controls electric current flow in a high vacuum between electrodes to which an electric potential difference has been applied. The type known as ...
s, or
transistor upright=1.4, gate (G), body (B), source (S) and drain (D) terminals. The gate is separated from the body by an insulating layer (pink). A transistor is a semiconductor device used to Electronic amplifier, amplify or electronic switch, switch ...
s in the seventh model. The third model of the instrument, unveiled in 1929, had a non-functioning
simulacrum A simulacrum ( plural: simulacra or simulacrums, from Latin '' simulacrum'', which means "likeness, semblance") is a representation or imitation of a person or thing. The word was first recorded in the English language in the late 16th century, ...
of a keyboard below the wire to indicate pitch. This model also had a "black fingerguard" on a wire which could be used instead of the ring. It was held between the right thumb and index finger, which was played standing at a distance from the instrument. When played in this way, the drawer is removed from the instrument and placed on a bench next to the player. Maurice Martenot's pedagogical manual for the ondes Martenot, written in 1931, offers instruction on both methods of playing.Later versions added a real functioning
keyboard Keyboard may refer to: Text input * Keyboard, part of a typewriter * Computer keyboard ** Keyboard layout, the software control of computer keyboards and their mapping ** Keyboard technology, computer keyboard hardware and firmware Music * Mu ...
; the keys produce vibrato when moved from side to side. This was introduced in the 1930s with the 84-key fourth version of the instrument. Subsequent versions had 72 keys. Combined with a switch that transposes the pitch by one octave, these instruments have a range from C1 to C8. A drawer allows manipulation of volume and timbre by the left hand. Volume is controlled with a touch-sensitive glass "lozenge", called the "gradation key"; the further the lozenge is depressed, the louder the volume. In his preface to Jeanne Loriod's ''Technique de l'Onde Electronique Type Martenot,'' Messiaen wrote that the "gradation key, struck by one or several fingers of the left hand, gives at the same time the sound, its intensity, and the attack itself. The intensity ranges from an almost inaudible pianissimo to the most terrible and painful fortissimo, passing through all intermediate gradations. The conceivable attacks are more numerous than those of the piano, violin, flute, horn or organ – they range from an absolute legato and glissando to the sounds of temple blocks and membranophones. Somewhere beyond the absolute legato exists an extraterrestrial, enchanted voice, and beneath the dry staccato attack may be found sound effects such as cracked bell, a crumbling pile of sand, or an aircraft motor." Early models can produce only a few waveforms. Later models can simultaneously generate sine, peak-limited
triangle A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry. A triangle with vertices ''A'', ''B'', and ''C'' is denoted \triangle ABC. In Euclidean geometry, any three points, when non- colline ...
, square, pulse, and full-wave rectified sine waves, in addition to pink noise, all controlled by switches in the drawer. The square wave and full-wave rectified sine wave can be further adjusted by sliders in the drawer. On the Seventh model, a dial at the top of the drawer adjusts the balance between white noise and the other waveforms. A second dial adjusts the balance between the three speakers. A switch chooses between the keyboard and ribbon. Further adjustments can be made using controls in the body of the instrument. These include several dials for tuning the pitch, a dial for adjusting the overall volume, a switch to transpose the pitch by one octave, and a switch to activate a filter. The drawer of the seventh model also includes six ''transposition'' buttons, which change the pitch by different intervals. These can be combined to immediately raise the pitch by up to a minor ninth. Martenot produced four speakers, called ''diffuseurs'', for the instrument. The ''Métallique'' features a gong instead of a
speaker cone In the field of acoustics, a diaphragm is a transducer intended to inter-convert mechanical vibrations to sounds, or vice versa. It is commonly constructed of a thin membrane or sheet of various materials, suspended at its edges. The varying air ...
, producing a metallic timbre. It was used by the first ondes Martenot quartets in 1932. Another, the ''Palme'' speaker, has a resonance chamber laced with strings tuned to all 12 semitones of an
octave In music, an octave ( la, octavus: eighth) or perfect octave (sometimes called the diapason) is the interval between one musical pitch and another with double its frequency. The octave relationship is a natural phenomenon that has been refer ...
; when a note is played in tune, it resonates a particular string, producing chiming tones. It was first presented alongside the sixth version of the ondes Martenot in 1950. According to the ''Guardian'', the ondes Martenot "can be as soothing and moving as a
string quartet The term string quartet can refer to either a type of musical composition or a group of four people who play them. Many composers from the mid-18th century onwards wrote string quartets. The associated musical ensemble consists of two violinist ...
, but nerve-jangling when gleefully abused". Greenwood described it as "a very accurate theremin that you have far more control of ... When it's played well, you can really emulate the voice." The ''New York Times'' described its sound as a "haunting wail".


Use


Classical music

The ondes Martenot is used in many classical compositions, most notably by the French composer Olivier Messiaen. Messiaen first used it in '' Fête des Belles Eaux,'' for six ondes, and went on to use it in several more works, including '' Trois Petites Liturgies de la Présence Divine'' and '' Saint-François d'Assise.'' For his '' Turangalîla-Symphonie,'' Messiaen used it to create "shimmering, swooping musical effects". This symphony featured the ondes Martenot and piano as soloists against the backdrop of a large orchestra. It is widely renowned as a masterpiece, and its fame associated the ondes Martenot with Messiaen. Messiaen's widow, Yvonne Loriod, arranged and edited four unpublished '' Feuillets inedits'' for ondes Martenot and piano which were published in 2001. Other composers who used the instrument include
Arthur Honegger Arthur Honegger (; 10 March 1892 – 27 November 1955) was a Swiss composer who was born in France and lived a large part of his life in Paris. A member of Les Six, his best known work is probably ''Antigone'', composed between 1924 and 1927 t ...
, Claude Vivier, Darius Milhaud, Edgard Varèse, Marcel Landowski,
Charles Koechlin Charles-Louis-Eugène Koechlin (; 27 November 186731 December 1950), commonly known as Charles Koechlin, was a French composer, teacher and musicologist. He was a political radical all his life and a passionate enthusiast for such diverse things ...
,
Florent Schmitt Florent Schmitt (; 28 September 187017 August 1958) was a French composer. He was part of the group known as Les Apaches. His most famous pieces are ''La tragédie de Salome'' and ''Psaume XLVII'' (Psalm 47). He has been described as "one of th ...
, Matyas Seiber, and
Jacques Ibert Jacques François Antoine Marie Ibert (15 August 1890 – 5 February 1962) was a French composer of classical music. Having studied music from an early age, he studied at the Paris Conservatoire and won its top prize, the Prix de Rome at his firs ...
. Honegger's most notable work including the ondes Martenot was his dramatic oratorio, ''
Jeanne d'Arc au bûcher ''Jeanne d'Arc au bûcher'' (''Joan of Arc at the Stake'') is an oratorio by Arthur Honegger, originally commissioned by Ida Rubinstein. It was set to a libretto by Paul Claudel, and the work runs about 70 minutes. It premiered on 12 May 1938 in ...
'' in 1935, in which the ondes Martenot's unique sonority was used to augment the string section. Darius Milhaud, who also enjoyed the unusual nature of the ondes Martenot, used it several times in the 1930s for incidental music. Edgard Varèse didn't use the ondes Martenot often, but it did appear in the premier of '' Amériques'' in Paris; he also replaced the theremin parts of his ''Ecuatorial'' with ondes Martenot. According to the ''New York Times'', the ondes' most celebrated performer was the French musician
Jeanne Loriod Jeanne Blanche Armande Loriod (13 July 1928 – 3 August 2001) was a French musician, regarded as the world's leading exponent of the ondes Martenot, an early electronic instrument. Born in Houilles, Yvelines, she was the younger sister of Yvonne ...
(1928–2001), who studied under Martenot at the Paris Conservatory. She performed internationally in more than 500 works, created 85 works for a sextet of ondes she formed in 1974, and wrote a three-volume book on the instrument, ''Technique de l'Onde Electronique Type Martenot''. A British pupil of Jeanne Loriod, John Morton of Darlington (1931-2014), performed his own ondes instrument in works by Messiaen, Milhaud, Honegger and Bartok, amongst others, at the Royal Albert Hall and elsewhere in the 1970s, as well as on television and radio. The English composer Hugh Davies estimated that more than 1,000 works had been composed for the ondes.
Jeanne Loriod Jeanne Blanche Armande Loriod (13 July 1928 – 3 August 2001) was a French musician, regarded as the world's leading exponent of the ondes Martenot, an early electronic instrument. Born in Houilles, Yvelines, she was the younger sister of Yvonne ...
estimated that there were 15
concerto A concerto (; plural ''concertos'', or ''concerti'' from the Italian plural) is, from the late Baroque era, mostly understood as an instrumental composition, written for one or more soloists accompanied by an orchestra or other ensemble. The typ ...
s and 300 pieces of chamber music. The instrument was also popular in French theatres such as the Comédie-Française, the Théâtre National Populaire and the Folies-Bergère. Thomas Adès's opera '' The Exterminating Angel'' features an ondes Martenot, which Adès says "could be considered the voice of the exterminating angel".


Popular music

Jonny Greenwood of the English rock band Radiohead is credited with bringing the ondes to a larger audience. He first used it on Radiohead's 2000 album '' Kid A,'' and it appears in Radiohead songs including " The National Anthem", "
How to Disappear Completely "How to Disappear Completely" is a song by the English rock band Radiohead from their fourth studio album, '' Kid A'' (2000). It was produced by the band with their producer Nigel Godrich. It is titled after Doug Richmond's 1985 book ''How to D ...
" and "Where I End and You Begin". Radiohead have performed versions of their songs "How to Disappear Completely" and "Weird Fishes / Arpeggi" using several ondes Martenots. On their 2001 album '' Amnesiac,'' they used the ondes martenot palm speaker to add a "halo of hazy reverberance" to Thom Yorke's vocals on the song "You and Whose Army?". In 2011, Greenwood composed a piece for two ondes Martenots, ''Smear''. The ondist Thomas Bloch toured in
Tom Waits Thomas Alan Waits (born December 7, 1949) is an American musician, composer, songwriter, and actor. His lyrics often focus on the underbelly of society and are delivered in his trademark deep, gravelly voice. He worked primarily in jazz during ...
and Robert Wilson's show '' The Black Rider'' (2004–06) and in Damon Albarn's opera " Monkey: Journey to the West" (2007–2013). Bloch performed ondes Martenot on the 2009
Richard Hawley Richard Willis Hawley (born 17 January 1967) is an English singer-songwriter, guitarist, and producer. After his first band Treebound Story (formed while he was still at school) broke up, Hawley found success as a member of Britpop band Longp ...
album ''
Truelove's Gutter ''Truelove's Gutter'' is the sixth studio album from musician Richard Hawley, released on 21 September 2009 in the UK and on 22 September 2009 in the US. The album title refers to an ancient street in Hawley's native Sheffield, now thought to ...
'' and the 2013
Daft Punk Daft Punk were a French electronic music duo formed in 1993 in Paris by Thomas Bangalter and Guy-Manuel de Homem-Christo. Widely regarded as one of the most influential acts in dance music history, they achieved popularity in the late 1990s as p ...
album '' Random Access Memories''. In 2020, the French composer Christine Ott released '' Chimères (pour Ondes Martenot)'', an avant-garde album using only the ondes Martenot.


Film and television

The ondes Martenot has featured in many films, particularly
science fiction Science fiction (sometimes shortened to Sci-Fi or SF) is a genre of speculative fiction which typically deals with imaginative and futuristic concepts such as advanced science and technology, space exploration, time travel, parallel uni ...
and
horror film Horror is a film genre that seeks to elicit fear or disgust in its audience for entertainment purposes. Horror films often explore dark subject matter and may deal with transgressive topics or themes. Broad elements include monsters, ap ...
s. In 1934
Arthur Honegger Arthur Honegger (; 10 March 1892 – 27 November 1955) was a Swiss composer who was born in France and lived a large part of his life in Paris. A member of Les Six, his best known work is probably ''Antigone'', composed between 1924 and 1927 t ...
used the ondes Martenot in his soundtrack for the 1932 French animated film The Idea (french: 'L'Idée') by Austro-Hungarian filmmaker Berthold Bartosch, believed to be the first use of electronic music in film. In 1936
Adolphe Borchard Adolphe Borchard (1882–1967) was a French pianist and composer who worked on a number of film scores during the 1930s and 1940s including large-budget films such as '' Ultimatum'' (1938). He has several music students. The Vietnamese composer N ...
used it in
Sacha Guitry Alexandre-Pierre Georges "Sacha" Guitry (; 21 February 188524 July 1957) was a French stage actor, film actor, director, screenwriter, and playwright of the boulevard theatre. He was the son of a leading French actor, Lucien Guitry, and follo ...
's ''Le roman d'un tricheur'', played by Martenot's sister, Ginette. It was used by composer
Brian Easdale Brian Easdale (10 August 1909 – 30 October 1995) was a British composer of operatic, orchestral, choral and film music, best known for his ballet film score ''The Red Shoes'' of 1948. Life Easdale was born in Manchester, and was educated at ...
in the ballet music for '' The Red Shoes''. French composer Maurice Jarre introduced the ondes Martenot to American cinema in his score for ''
Lawrence of Arabia Thomas Edward Lawrence (16 August 1888 – 19 May 1935) was a British archaeologist, army officer, diplomat, and writer who became renowned for his role in the Arab Revolt (1916–1918) and the Sinai and Palestine Campaign (1915–1918 ...
'' (1962). Composer Harry Lubin created cues for The Loretta Young Show,
One Step Beyond One Step Beyond may refer to: Music * ''One Step Beyond'' (Dungeon album) or the title song, 2004 * ''One Step Beyond'' (Jackie McLean album), 1963 * '' One Step Beyond...'', an album by Madness, or the title song (see below), 1979 * ''One Step ...
and The Outer Limits featured the instrument. The English composer Richard Rodney Bennett used it for scores for films including '' Billion Dollar Brain'' ( 1967) and '' Secret Ceremony'' (
1968 The year was highlighted by protests and other unrests that occurred worldwide. Events January–February * January 5 – " Prague Spring": Alexander Dubček is chosen as leader of the Communist Party of Czechoslovakia. * J ...
).
Elmer Bernstein Elmer Bernstein ( '; April 4, 1922August 18, 2004) was an American composer and conductor. In a career that spanned over five decades, he composed "some of the most recognizable and memorable themes in Hollywood history", including over 150 origi ...
learned about the ondes Martenot through Bennet, and used it in scores for films including '' Heavy Metal'', '' Ghostbusters'', '' The Black Cauldron'', '' Legal Eagles'', '' The Good Son'', and '' My Left Foot''. Composer Danny Elfman used the instrument in the soundtrack to the comedy science fiction film '' Mars Attacks!:'' he had originally intended to use a theremin, but was unable to find a musician who could play one. Director Lucille Hadžihalilović decided to use the instrument in her film ''Evolution'' (2015) as it "brings a certain melancholy, almost a human voice, and it instantly creates a particular atmosphere". Other film scores that use the ondes Martenot include '' A Passage to India'', '' Amelie'', '' Bodysong,'' '' There Will Be Blood'' ( 2007), '' Hugo'' (
2011 File:2011 Events Collage.png, From top left, clockwise: a protester partaking in Occupy Wall Street heralds the beginning of the Occupy movement; protests against Libyan dictator Muammar Gaddafi, who was killed that October; a young man celebrates ...
) and ''
Manta Ray Manta rays are large rays belonging to the genus ''Mobula'' (formerly its own genus ''Manta''). The larger species, '' M. birostris'', reaches in width, while the smaller, '' M. alfredi'', reaches . Both have triangular pectoral fins, horn-s ...
''. The ondes Martenot is the subject of the 2013 Quebec documentary ''
Wavemakers ''Wavemakers'' (original French title ''Le chant des ondes'') is a 2012 Quebec documentary film about the Ondes Martenot, directed by Caroline Martel. Martel discovered the Ondes Martenot while making her 2004 film, '' Le fantôme de l'opératric ...
''. It is used in a performance of Messiaen's '' Quartet for the End of Time'' in an episode from the third season of the
Amazon Amazon most often refers to: * Amazons, a tribe of female warriors in Greek mythology * Amazon rainforest, a rainforest covering most of the Amazon basin * Amazon River, in South America * Amazon (company), an American multinational technolog ...
series '' Mozart in the Jungle'', where a musician plays the ondes Martenot to inmates on Rikers Island. The British composer Barry Gray studied the instrument with Martenot in Paris, and used it in his soundtracks for 1960s films including ''
Dr Who and the Daleks ''Dr. Who and the Daleks'' is a 1965 British science fiction film directed by Gordon Flemyng and written by Milton Subotsky, and the first of two films based on the British science-fiction television series ''Doctor Who''. It stars Peter Cush ...
'', and '' Doppelgänger''. One of Gray's instruments (a valve model 6 from 1969) was inherited and restored by film composer François Evans who used it in
Edgar Wright Edgar Howard Wright (born 18 April 1974) is an English filmmaker. He is known for his fast-paced and kinetic, satirical genre films, which feature extensive utilisation of expressive popular music, Steadicam tracking shots, dolly zooms and a ...
's first feature film: '' A Fistful of Fingers'', and occasionally records with this instrument in his soundtracks. Evans studied ondes Martenot under Pascale Rousse-Lacordaire, pupil of Maurice Martenot and Jeanne Loriod. The ondes Martenot is sometimes reported as having been used in the original ''Star Trek'' theme; in fact, the part was performed by a singer.


Legacy

In 2001, the ''New York Times'' described the ondes, along with other early electronic instruments such as the theremin, teleharmonium, trautonium, and orgatron, as part of a "futuristic electric music movement that never went remotely as far as its pioneers dreamed ... proponents of the new wired music delighted in making previously unimaginable noises". The French classical musician Thomas Bloch said: "The ondes martenot is probably the most musical of all electric instruments ... Martenot was not only interested in sounds. He wanted to use electricity to increase and control the expression, the musicality. Everything is made by the musician in real time, including the control of the vibrato, the intensity, and the attack. It is an important step in our electronic instrument lineage." According to music journalist Alex Ross, fewer than 100 people have mastered the ondes Martenot. In 1997, Mark Singer wrote for '' The Wire'' that it would likely remain obscure: ''The fact is that any instrument with no institutional grounding of second- and third-raters, no spectral army of amateurs, will wither and vanish: how can it not? Specialist virtuosos may arrive to tackle the one-off novelty ... but there's no meaningful level of entry at the ground floor, and, what's worse, no fallback possibility of rank careerism if things don't turn out.'' In 2009, the ''Guardian'' reported that the last ondes Martenot was manufactured in 1988, but that a new model was being manufactured. In 2011, ''Sound on Sound'' wrote that original ondes Martenot models were "all but impossible to obtain or afford, and unless you can stump up 12,000 Euros for one of Jean‑Loup Dierstein's new reproduction instruments, the dream of owning a real Ondes is likely to remain such". In 2012, the Canadian company
Therevox Therevox builds custom musical instruments in Ontario, Canada. The company focuses on continuous-pitch instruments and is known for building a modern analog synthesizer inspired by the rare Ondes Martenot. First commissioned in 2004 to build mode ...
began selling a synthesizer with an interface based on the ondes Martenot pitch ring and intensity key. In 2017, the Japanese company Asaden manufactured 100 Ondomo instruments, a portable version of the ondes Martenot. The ondes Martenot's electronics are fragile, and it includes a powder which transfers electric currents, which Martenot would mix in different quantities according to musicians' specifications; the precise proportions are unknown. Attempts to construct new ondes Martenot models using Martenot's original specifications have led to mixed results. Although official production ceased in 1988, recently a modern version has been designed and manufactured in Calgary, Canada. It is both faithful to the original and yet with modern adaptations including MIDI.


References

* * Thomas Bloch, insert notes to "Music for ondes Martenot" CD (Naxos Records, 8.555779, July 2004)


Further reading

* Richard Orton and Hugh Davies: "Ondes martenot", ''
The New Grove Dictionary of Music and Musicians ''The New Grove Dictionary of Music and Musicians'' is an encyclopedic dictionary of music and musicians. Along with the German-language '' Die Musik in Geschichte und Gegenwart'', it is one of the largest reference works on the history and t ...
'', first edition, edited by
Stanley Sadie Stanley John Sadie (; 30 October 1930 – 21 March 2005) was an influential and prolific British musicologist, music critic, and editor. He was editor of the sixth edition of the '' Grove Dictionary of Music and Musicians'' (1980), which was pub ...
and John Tyrrell, London, Macmillan Publishers, 1980, pp. 237–242 {{Authority control Continuous pitch instruments Electronic musical instruments Experimental musical instruments Keyboard instruments *Main