RAES Godfried-Willem (1952)

Godfried-Willem Raes (Ghent, 3 January 1952) studied musicology (with Jan Broeckx) and philosophy (with Leo Apostel) at the Rijksuniversiteit Gent, and piano, clarinet, percussion and composition (with Louis de Meester and Norbert Rosseau) at the Royal Conservatory in Ghent. After leaving the conservatory in 1968, he set up the Logos-group, which quickly developed into one of the most prominent and durable factors in the Flemish experimental music scene. After taking part in the Darmstädter Ferienkurse für Neue Musik over a number of years, receiving lessons from, among others, Karlheinz Stockhausen and György Ligeti he returned to the conservatory in Ghent in 1982 as a teacher of avant-garde chamber music and was subsequently appointed full-time teacher of experimental composition. In 1993, Raes earned a doctorate in musicology with a dissertation on the “Invisible Instrument” and since 1997 he has been connected with the Orpheus Hoger Instituut voor Muziek. Besides his work as a composer and pedagogue, Raes is active as a concert organiser (with the Stichting Logos in Ghent) and as a performer of his own work and that of others, partly in collaboration with his wife Moniek Darge, the two artists together forming the Logos Duo.



With his revolt against the then stodgy Ghent conservatory and the subsequent founding of Logos, Godfried-Willem Raes was among the initiators of experimental music in Flanders. Like similar groups in other countries (such as the Fluxus movement or John Cage in the United States or Cornelius Cardew’s Scratch Orchestra in Britain), he toiled (and continues to toil) for a broadening of horizons on four fronts: a broadening of the notion of music, by abolishing the boundaries between art and life and between different art forms; a broadening of the notion of work; a broadening of the means of production, by using existing instruments in new ways or by building new instruments oneself; and a broadening of the role of the audience, which is invited to participate. In this, completely in keeping with his counterparts in other lands, Marxist conceptions have formed a continuous source of inspiration: almost all aspects of his oeuvre can be seen in terms of the ideal of a non-authoritarian form of music production and consumption, leading to the end of alienation.

As part of this struggle, Raes has strongly opposed traditional concert culture, which is characterised by a fundamental lack of freedom for the listener, who is faced with limited choices offered by the performer and is in fact always dependent on this performer: the individual is hindered from any self-expression and must conform to the performer’s expression. It is clear that repression and alienation go hand in hand here. Raes sees alternatives in a principled choice for small-scale concerts, where contact and interaction between audience and performers holds the central place; the concerts organised by the Stichting Logos have been paradigmatic examples of this approach. On the other hand, Raes also sees alternatives in the audience’s active participation in the performance (for example, the version of the Pneumaphone Project in which the pneumaphones were manned by members of the audience) and the stimulation of amateur music-making.

In Raes’ opinion, not only music consumption (the listener – music relationship), but also music production (the musician – music relationship) suffers in terms of quality on account of alienation and repression. The traditional musician plays only a small role in the musical production process and is moreover hindered in his or her expression by the fact of being dependent on the possibilities of an instrument that is essentially foreign, a prosthesis to his or her body. For this reason, Raes sees himself not as a composer, but as a “music-maker in the broadest sense of the word”. He abandons the alienating division of labour by performing compositions himself and by building some of the instruments himself. Examples of this are the more than twenty pneumaphones (wind pipes connected to an air-bladder, whereby the stream of air can be regulated at will) used in his Pneumaphone project, the automated versions of acoustic instruments (the player piano, the Autosax, the Piperola and the Vox humanola) and the many sound sculptures, such as the Wolkenrider (Cloudrider), the Toetkuip (the Toot-tub), and the Bellenorgel (the bell organ).

An extraordinary Raes invention is the so-called “Invisible Instrument”. In order to produce the most direct expression possible, the performer’s movements are captured – with the aid of radar and sonar technology – and passed on to a computer. The computer then analyses the movements and translates their “parameters” (absolute quantities of movement, velocity, deceleration…) into sound. In Holosound (1983) and A Book of Moves (1992), the first steps in this work-in-progress that has occupied Raes since 1972, the acoustic result was also partly determined by previously existing sound material that was fed into the computer. In Songbook (1995), the vocal sounds produced by the performer were captured and modified in real time in the same way as his movements. The same tendency to abandon the division of labour is the most striking characteristic of Dynamo (1998). In this composition for electric guitar the soloist must generate the energy needed to power the guitar by pedalling an exercise bike during the performance.

The importance that Raes attaches to the most direct, unalienated expression of the performer is for him in no way a contradiction of his predilection for technique and technology. He sees the use of computers rather as a manner of counteracting alienation: since performer-composers themselves can write computer programs required for the performance of a work, the computer is the only instrument on which they are no longer dependent, but which, on the contrary, they can completely control. Raes thus predicts the end of traditional instruments, since “musicianship” will be transferred to a higher level of control over the material: the programming of the computer. In this context, Raes’ algorithmic compositions should here be mentioned. For the compositions of A Book of Fugues (1991-92) and A Second Book of Fugues (1992-94), he designed a computer program that served specifically to write four-voice fugues. The operation of the program can be summarised as follows: the composer enters a theme, which is then subjected to a “dux-analysis” by the computer. On the basis of this, a number of possible comes themes are generated. The composer can then accept or reject any of these, whereby the computer registers the composer’s preferences in order to take these into account in the generation of subsequent comes themes. On the basis of the chosen dux and comes the computer suggests a possible form. Once the composer approves, the computer then composes the fugue. By means of two extra modules of the program, the computer can also play the fugue and print it out. Using such programs, Raes wrote A Book of Chorals and Studies in Harmony.


List of works

(Variable) Instrumental ensemble: Shifts (1986-99); A Book of Fugues (1991-92); A Second Book of Fugues (1992-93); Fall ’95 (1995)

Instrumental music theatre: “Mach96” (1996); Dynamo (1998); Glaciar Quartet for 4 PET flessen (2002); TechnoFaustus (work in progress)

Instruments and installations: Bellenorgel (1973); Symphony no. 2 for singing bicycles (1976); Pneumafoon (1983); Klankboot (1987); Toetkuip (1987); Autosax (1991-96); Wolkenrijder (1997); <Belly> (2002); <Tubi> (2003); <So> (2003); <Puff> (2003-04); <Hurdy> (2004); <Sire> (2004-05)

Piano: Studies in Fuzzy Harmony (1996-97)

Live electronics and mixed media: Holosound (1983); A Book of Moves (1992); A Second Book of Moves (1993); Songbook (1995)

Work for robots and automatons: Eary Lis Trimbl (from TechnoFaustus) (2002); Lithos (from TechnoFaustus) (2002); Gestrobo (2002); Hur Di Hur Ni for performer and the automaton <Hurdy> (2004); Fuzzy Harmony Studies #9 tot #12 for <PlayerPiano> (2001-2005)

For a more detailed list of works, please follow this link.



– C. BERGSTROEM-NIELSEN, The Methodology of Godfried-Willem Raes’ improvisation teaching at conservatory of Gent, Belgium, 1998, teruggevonden op http://www.logosfoundation.org/g_texts/improvisation-methodology.html
– D. BRANDT, Explorers at the Edge, in The Bulletin, 17 oktober 1991
– K. COLUMBIER, R. DIEPENDAELE, Humus, in World New Music Magazine, vol. 22, 2012 p. 114
– A. CROISBIEN, La Fondation Logos a Gand, in Open system project, nr. 13, 1985, p. 34-41
– M. DELAERE, Experimentele Muziek, in M. DELAERE, Y. KNOCKAERT en H. SABBE, Nieuwe Muziek in Vlaanderen, Brugge, 1998, p. 86-93
– M. DELAERE, art. Raes, Godfired-Willem, in Die Musik in Geschichte und Gegenwart. Personenteil 10, uitg. dr. L. FINSCHER, Kassel, 2005, p. 1190-1191
– J. DIERICKX, Raes Godfried-Willem: Fuzzy Harmony: studie nr. 5 (1996-97) in Contemporary Music in Flanders II: Flemish piano music since 1950, uitg. dr. J. COMPEERS en M. DELAERE, p. 35.
– K. GOEYVAERTS, Raes in zijn ‘open deur’, in Muziekkrant, 1980
– L HUYBRECHTS, CROSS-over, een overzicht rond kunst, media en technologie in Vlaanderen, Leuven, 2008, p. 22-24
– Y. KNOCKAERT, Een handjevol jonge Vlaamse componisten, in Ons Erfdeel, nr. 1, 1984, p. 49-57
– Y. KNOCKAERT, Godfried-Willem Raes, in Kunst en Cultuur, 1994
– J. LONG; J. MURPHY, D. CARNEGIE, A. KAPUR, Loudspeakers Optional: A history of non-louspeaker-based electroacoustic music, in Organised Sound vol. 22, nr. 2, 2017, p. 195-205
– L. MAES, The Man and Machine Orchestra at Logos, in Computer Music Journal, vol. 35, nr. 4, , 2011
– L. MAES, Mysterious woods and unexpected urban sounds, in World New Music Magazine, vol. 22, 2012, p. 123
– M. MILLER, Logos stands out among the avant-garde, in New York Tribune 27 april 1984
– F. NEYRINCK, Godfried-Willem Raes, in HAM, nr. 2, 1983, p. 72-77
– M. PARENT, Muziekmaker Godfried-Willem Raes. De politieke en esthetische fundamenten van zijn werk, onuitgegeven eindscriptie, Katholieke Universiteit Leuven, 2005.
– M. PARENT, De instrumenten van muziekmaker Godfried-Willem Raes, in Kunsttijdschrift Vlaanderen, nr. 366, 2017,
– M. PARENT en M. QUANTEN, Dances with robots and the song of algorithms, World New Music Magazine, vol. 22, 2012, p. 137
– H. SABBE, Logos’ heilige waanzin, in Kunst en Cultuur, nr. 2, 1980
– U.-S. TALAY, Belgian Night for musically adventurous, in The Bangkok Post, 19 maart 1988
– M. TCHIBA, AUTOMATEN IM TETRAEDER: DIE STIFTUNG LOGOS IN GENT, in Neue Zeitschrift für Musik 06/2013, p. 64
– L. VELDHOEN, Robotsymfonie, in De Ingenieur, nr. 10, 2011, p. 60
– J.-P. VAN BENDEGEM, Godfried-Willem Raes, in Yang, nr. 121, 1985, p. 8-16
– M. WIJNANTS, New Interfaces between humans and music, in Janus, 2003.



– Logos – ‘Integratie’, Logos, 1973
– For Grooves, Ministerie van de Vlaamse Gemeenschap, 1978
– Bellenorgel, IGLOO 004, 1979
– Composition/Improvisation, IGLOO 011, 1982
– Pneumafoon, IGLOO 050, 1986
– Logos: Works, Experimental Intermedia Foundation XI 117, 1995
– Fall’95, Radio3 R3 98007, 1998
– Standing Waves,  PD 003, 1999
– Counting Down to -747 +30, SEM 25, 1999
– Player Piano Music: Jumpy Variations, Fortepiano, PD 004, 1999
– 4 Others: Lipstick, Cohiba, Dynamo, E10, Obotek, Partition (Tomma Wessel, Karin De Fleyt, Tom Pauwels, Piet Van Boxtael, Andrew De Masi), PD 006, 2000
– Cella, MINIATUREN VOOR ARCHIPEL (Goeyvaerts Strijktrio), CC Sint-Niklaas, 2000
– Soundplay’00”, MESCD-0012, 2001
– Automaton: music for automats, PD 008, 2001
– M&M: music for robots with the M&M ensemble PD008, 2002
– <Harma> plays J.S. Bach, Goldberg Variationen PD001, 2002
– <2 gather>, PD009, 2003
– <More Automats>, PD0012, 2004
– Vibi, Troms, Piperola, Harma, Player Piano werden gebruikt voor The Straw, QUARTO ESCURO (The Nevermet Ensemble), Rudimentol Records RUD003, 2005
– <Machine Orchestra>, PD 013, 2005
– <RoBodies>, PD 014, 2005
– Fuzzy Harmony STudy #9, #11, #12, PD017, 2008
– Religionszwang, Scientia Vincere Tenebras, Schroeders Dream, LONELY ROBOTS, PD019, 2010
– Tango Tres, Tango Flamenco, ROBOTANGO, PD020, 2012
– LOGOS ARCHIVAL 1974-81, Sub Rosa SUBLOGOS01, 2015



Logos Public Domain
EMC (Londen)



Logos Foundation



Texts by Steven Vande Moortele, Rebecca Diependaele and Anna Vermeulen
Last update: 2018