Music for robots

All of the following pieces are written for the Logos robot orchestra.

Valse vide (2021)

Miniature for tiny robots (2020)

Fugato for <Pos> (2020)

Allotriomorphic (2020)

A trio for metalophone percussion robots.

Study #27, for <Tubo> (2019)

A piece for a bass tubophone robot.

Hybrnation (2019)

8x8x8x8 (2019)

An algorithmic piece for robot ensemble

Plus/Miniature (2019)

Under pressure (2019)

A noisy piece for organs playing with a too low air pressure

Study #26, for <Per> (2019)

A piece for a new percussion Robot

Remember me for 30 days (2018)

A new spectral quarter tone piece for the Logos Robot orchestra, featuring several wind and percussion robotic instruments.


Study #25, for <Pos> (2018)

Kristof Lauwers ·

Egg shaped sphere (2018)

A piece for robot ensemble

Study #23, for <Rodo> (2017)

A piece for a giant robotic toy piano

Study #22, for <Pi> (2017)

A piece for a tiny electroacoustic pipe organ using membrane driven resonator pipes, part of the Logos Robot Orchestra

Study #20, for <Hybrlo>(2016)

A piece for <HybrLo>, an electroacoustic pipe organ using membrane driven resonator pipes, part of the Logos Robot Orchestra

Study #19, For <Chi> And Robot Orchestra (2016)

A piece for the <Chi> robot accompanied by the other robots of Logos’ Robot Orchestra

Namuda Studies (2013 – 2016)

Various studies created in collaboration with dancer Emilie de Vlam, where the robots interact wiht the dance movement, using Godfried-Willem Raes’ Namuda system.

A little excerpt, filmed by Svend Thomsen (TVF):

Study #18, for <Temblo>, <Psch>, <Tinti> and <HybrHi> (2015)

A quartet for four of the smallest robots of the orchestra.

Study #17, for <Tinti> (2015)

Study #16, for <Hybr>(2015)

Moer info on <hybr>

Processing #6 (2014)

For bass flute and interactive robot orchestra. PRemiered by Karin Defleyt.

White (2014)

Video by Alexander Verdoodt

Study #15, for <Whisper>(2013)

Study #14, for <Temblo> (2013)

A hyperpolyrithmic piece for <Temblo>, a robot with 12 temple blocks.

Twaalftoonsstuk (2012)

A piece for robot ensemble, based on a microtonal 12 tone series.

One note, no samba (in B) (2012)

Study #12 and #13, for robotic wind septet (2012)

This pieces are part of a series of studies where i explore the possibilities of the robots of the M&M orchestra that distinguish them from human musicians. In ‘Study #12, for robotic wind septet’, i explored the idea of using a continuous, non-quantized pitch- and time space, using the ability of the robots to play very precise glissandos, slowly drifting from chord to chord. Study #13 is developping further on this idea, exploring the auditory effects of slowly shifting microtonal intervals.

roboboids (2012)
An algorithmic piece based on the boids algorithm.

The <RGB> in <M&M> (2012)

A picture of the robot orchestra converted to music played by the robots.

Psittacidae (2011)

An interactive composition for viola and robots, where the robots learn to create their own melodies by listening to the viola

Stishovite (2011)

An interactive piece for dancer and robots, premiered by Zam Ebalé, using the Namuda technology developped by Godfried-Willem Raes.

Inner Darkness, Chaleur/Warmte, Laiti I-III (2009/2010)

A series of collaborative pieces where i tried to do a more advanced analysis of the sounds of the voice and violin of Moniek Darge, not only recognising pitches, but also different vowels/timbres. The results of this analysis, done in Pure Data, together with the movement of the dansers Marian De Schryver and Zam Ebalé control the music played by the robots’

Study #11, for <Hat> (2009)

A piece for the <hat> robot, that was ordered by Aphex Twin from the Logos Foundation.  Before we sold the robot, luckily me and my colleagues had the chance to write a piece for it.

Study #10, for <Vitello> (2009)

Avant I (2009)

Written for and premiered at Avanti, a bike-and-concert tour organised by the ‘Festival van Vlaanderen



Авось 9 (2009)

In this piece, the orchestra is controlled with the use of Percussa’s Audiocubes

after bpNichol (2009)

“After bpNichol” is a composition for audio track and the robotic instruments of the Logos Robot Orchestra. The audio track is a montage of samples of bpNichol‘s voice, mostly with no or little processing. The Logos Robot Orchestra is an orchestra consisting of over 40 robotic musical instruments, some of which are automated existing instruments,others are completely new inventions. A lot of this instruments have very fine expressive control, which I use in this composition, to imitate, extend and complement the voice sounds on the tape.

Izar (2009)

An interactive piece where the robots respond to the movements of a dancer.

a083522 (2009)

An algorithmic composition for the robot orchestra, based on the a083522 integer number sequence.


An interactive piece where the robots respond to the movements of a dancer.

Stainless (2009 – 5′)

For the Robot orchestra and audiotrack

Study #9, for <Krum> (2008)


A study investigating the possibilieties of the <Krum> organ module.
Soon available on CD

Study #8, for <Psch> (2008)

Another algorithmic robot solo.

Helmikuu (2008)

An interactive piece where the robots respond to the movements of a dancer.

Goldfingers (2008)

A piece where the robots are played using the Handy1 pressure pad interface

Ulubmectsigsioseotlo (2008 – 8′)

A piece for the automated quartertone organ <Qt>, commisioned by premiered at the Gent Conservatory.

The piece starts off with an exploration of the immense harmonic possibilities of the quartertone scale, following a stepwise motion algorithm that tries to make natural sounding transitions between the quartertone chords that otherwise might sound alienating to the listeren.
Next, departing from a tremolo in <Qt>’s highest register, ever permuting melodic patterns are built up, gradually covering the whole range of the instrument. In the mean time a two voice bass part develops following a random walk alorithm. This bass part later on forms the foundation of augmented and diminuted spectral chords that interrupt the melodic patterns. Departing from this patterns, a counterpointic texture of accelerating rhythmic patterns is built up.
The piece ends in a Nancarowian climax with several scales and motivs crossing each other at different tempi.

The title of this piece is a permutation of ‘Cogluotobusisletmesi’, the title of the famous quarter tone piano piece by Clarence Barlow.

Mass spring model #1 (2007)

Another interactive piece where the robots respond to the movements of a dancer.

Tilt! (2007)

In this piece the robots are controlled by an two 3D acceleration sensors

Huhtikuu d(2007)

Another interactive piece where the robots respond to the movements of a dancer.

Mars (2007)

In this cooperation with Moniek Darge, the robots respond to the sounds of an E-violin

Study #7 (2007 – 6′)

A study for the percussion instruments <Casta> ,<Sire> and <Springers>

Tammikuu (2007)

Another interactive piece where the robots respond to the movements of a dancer.

Burden Birds (2006)

A soundtrack on the robots for a animation film by Lieve Vanderschaeve

Lokakuu (2006 – 6′)

Interactive piece for dancer and robots.

Poco a poco ma non troppo (2006 – 4′)

m*lan*schnitt*eichen*m voice, cd, claves and automatenorkest(2006)

Cooperation with polypoet Jelle Meander

Broken Breakz (2006)

Interactive piece where the robots respond to the movements of a dancer.

Fuga Falafel (2006 – 4′)

Algorithmic piece for robots.

Study #5 (2006)

For the percussion instruments <Casta> and <Sire> variable

Study #4 (2005)

For the robots <Vacca> , <Bourdonola> and <Tubi>

Dancing Violin (2005)

An interactive piece where the robots respond to the sounds of an e-violin. Collaboration with Moniek Darge. Premiered at Corpus05, Bruges, may 7th 2005

Plastic reformations (2005)

Algorithmic piece for robots.

Study #3 (2005 – 6′)

Study #1 (2004 – 5′)

for <Belly>

Study #2 (2004 – 5′)

for <Hurdy>

download scoreRobot Games (2004)

In this piece a performer (Moniek Darge) engages in a dialogue with the robots of the <M&M> orchestra. The robots are controlled by a computer program written in GMT that interacts with her movement and with the sounds of her e-violin. The robots behave as real musicians, with each their own character and their own response on the input of the performer. This piece uses the invisible instrument, a sonar motion tracking system designed and built by Godfried-Willem Raes and the CQT2 polyphonic pitch to midi convertor created by Johannes Taelman.

RobotGarden (2003)

This is a collective composition in several episodes by Moniek Darge (e-violin) and Kristof Lauwers (computer programming). The electric violin engages in a dialog with the automats of the <M&M> (man and machine) robot orchestra, whereby each automat behaves as a fully fledged musician. It is an interactive work in which the boundaries between composition and the development of musical instruments and interfaces fade.

Plastic Deformations (2002)

Plastic Deformations is an algorithmic piece for the <M&M> music robots, based on a cellular automaton: a virtual space is divided in some 500 cells. Some of those are inhabited, others are empty. The algorithm creates several generations of cells, whereby the content of each cell is derived from the content of the neighbouring cells in the former generation, through a fixed formula. This results in complex, everchanging patterns, which where translated into pitches and rhythms played by the robots.

The program that plays back the piece allows some user interaction: the instrumentation can be controlled in real time, and various filters can be applied to determine how the data from the cellular automaton are translated to music.

Sphk (2002 – 5’45”)

This piece is written for the automated saxophone <autosax>. The sound of this instrument is (partially) generated by a computer controlled acoustic feedback mechanism.
In this piece i dropped the computer control, and explored all feedback sounds that spontaneously occured while playing all kind of patterns on the valves of the instrument.
The piece starts out with just the ticking sounds of the valves. Gradually the feedback is turned on and you hear soft in- and outfading tones. After a while the tones turn into multiphonics and a wide range of overtones, going higher and higher until in the end only the resonance of the valve tickling remains

4294967296 sonatas for automaton ensemble (2002)

4294967296 is the amount of numbers that can be represented by a 32 bits variable on a computer. It is also the number of different seeds that can be used to create a random sequence in the PowerBasic computer language, on wich <gmt>, the framework in wich i wrote this algorithmic composition, is build. Each of the sonatas consists of the same algorithm, fed with one of all possible random seeds. I must admit they all sound somewhat alike, but then, we are definitely not the first composer guilty of wryting X times allmost the same piece…

I scored this piece for an automatic barrelorgan, a playerpiano and percussion automats, all part of Godfried-Willem Raes’ automaton orchestra. The organ part consists of four voices that move within a predefined, evolving range, driven by a Markov chain based structure (that’s where the random numbers come into play). Four piano voices are continuously recycling the note material of the organs, dynamically and rithmically accentuating certain events in the flow of the primary algorithms. The percussion provides rhythmical continuity, but never exact periodicity, indicating all moments where the other instruments might or might not play a new note.

The doming structure is very simple and slowly evolving, so that an almost meditative atmosphere is created and the listeners focus shifts to a smaller time-scale. It is impossible to detect the precise working of the algorithms by ear, but the melodic and counterpoinctal structures heared by the attentive listener are closely related to the inner workings of the computer program.

During performance of the piece, instrumentation can be controlled dynamically and certain events can be triggered in real time from the computer keyboard.

Vib.rt-H 50 (2002 – 3′)

This composition is written for the occasion of the 50th birthday of of the composer/ performer/ instrumentmaker/ … Godfried-Willem Raes. It is scored for two instruments of the automaton orchestra he is currently creating: <Vibi>, an automated vibraphone and <Harma>, a harmonium.

The piece uses the renaissance cantus firmus technique, where one melody, borrowed from a song or constructed from arbitrary rules is used as a base around wich a polyphonic piece is built up. Here we used two melodies. The first is the song Happy Birthday, the second is based on the letters of the name Godfried-Willem Raes. Both melodies are stretched in time and played simultaneously, so that they can’t be recognized anymore. The other voices are built up of the sum – and difference tones between this two voices.

This post is also available in: Dutch

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