All posts tagged with 'music/audio' sorted by date.

Jun 2019

t r e e s t a r t i m e

An installation in which people are invited to join in creating together. While listening to the stimulating music people gaze into a detailed network of threads and add to it using the spool of thread they were given.

The project is part of the PQ Waltz, an initiative by Trudi Maan, Henny Dörr and Anne Habermann where the international community was invited to slow travel to the The Prague Quadrennial of Performance Design and Space.

t r e e s t a r t i m e was conceptualized and realized by Ward Slager, Ivo Smit, Jitte van Veen and Pleun Verhees under supervision of the University of the Arts Utrecht. The project includes music by Jitte and Ward, texts by Ivo, clothing by Pleun, a website and a timelapse video by Ward.

Article cover photo by Eva Neužilová

Feb 2019

PRP Voyager

A performance/composition instrument built together with Fedde ten Berge for the Pentacle system, a 15.3 surround speaker system.

The instrument has six tracks of sound generation using the Pseudo Random Pulse algorithm written by Fedde ten Berge. I've reïmplemented the algorithm in C++ to run it on a Bela. Together we've expanded upon the algorithm and added a pulse looper to record and play back patterns. The recorded patterns can be quantized by a certain percentage to blend between the algorithms irregularity and and the quantized regularity.

With RGB LED encoders and a LCD display you can create sounds which can then be stored on one of the four corners of a joystick. Each track has it's own joystick allowing for seamlessly morphing between complex sounds.

12 CV inputs can be used to override the X and Y axis of each joystick. An ethernet connection listens for OSC messages containing a new set of notes. Together with the 6 clock CV outputs this enables easy intergration with other gear like a laptop running custom software projects built-in Max/MSP, Pure Data, Super Collider or it can be hooked up to your nuclear launch systems

Lastly is has audio synced spatialisation control for The Pentacle 15.3 system so that each new note can be placed in a different location in the room.

The instrument was used in performances at:

PRP algorithms & sound design
Fedde ten Berge

Embedded software implementation
Ward Slager

Casing & hardware
Fedde ten Berge & Ward Slager

Oct 2018


An instrument in which vibrations are presented to the ear, eye and body. It amplifies the physical behaviour of a large spring which is then fed back into the spring creating a feedback loop.

By picking up vibrations in the spring and sending them back into the spring it will find a balance at which it will resonate. The resonations can be altered by modifying the electrical signal during the amplification stage, pushing or even hitting the spring. The instrument act as a sort of perpetuum mobile from which a strong soundscape arises which not only shakes the spring but also the surrounding room.

The photos are taken by Lars Lensink at a performance held at ACU, Utrecht.

Oct 2018


A network installation where multiple computers together play a single song. The visuals are a reference to the stereotypes surrounding computers, hacking and other cyberwizardry.

All source files used in this project can be found on GitHub

Project realised together with Bram Giesen and Geert Roks

Dec 2017

Night Owl

An EP somewhere inbetween melodic trance and breakbeat. The EP contains modern trance and breakbeat music.

Oct 2017

Modular #01

A modular synthesizer performance in which analog and digital sound sources slowly turn into a single raw texture.

The performance is recorded on the modular system in the studio's at the University of the Arts Utrecht.

Jul 2017

Burst / Backdraft

An EP with a remixed track from Koarse & Pulsate and a midtempo Electronic track. The EP contains drum'n'bass, ambient and psychedelic breakbeat.

Burst is a mid-tempo athmospheric ambient/electronic track filled with synthesizers, drums and mechanical keyboards. Backdraft is an uplifting drum'n'bass remix I did for Koarse & Pulsate

May 2017

Supercollider #01

An electronic track composed entirely in Supercollider. Several sounds are shaped by randomness which makes every playback slightly different!

The source code can be found on GitHub

May 2017

Machine Jazz

Algorithmic Breakbeat/Jazz compositions based on image analysis. The pixels shape the sounds, song structure and control the algorithm that works its way through classic jazz chords structures.

Feb 2017


A classical short composition in the tradition of the twelve-tone technique.

Sheet music is available upon request.

Feb 2017

Gong Desintergration

A dark algorithmic soundscape which is made by extracting and altering the indivual vibrations of a bell sound.