TONEWHEELS workshop in Dortmund

Yesterday I flew back from Riga, where I spent a fantastic weekend exploring old Soviet bunkers and foggy beaches, playing drones with some “forest folk” Latvian hippy friends on the student radio, checking out the Skaņu mežs festival and ruminating on the time-bending properties of Rigas Black Balzams. Expect a festival review in the near future right here.

Next mountain on the horizon is a DIY electronics workshop I’m running for the exhibition “Waves -The Art of the Electromagnetic Society”, put together by Inke Arns, Armin Medosch and the HMKV art center in Dortmund. The exhibition opened last weekend and my workshop will take place at the end of this month. There’s probably still space, so my German or would-be German friends are welcome to jump on board. Details below…

Workshop with Derek Holzer (USA)

HMKV in the PHOENIX Halle Dortmund
May 29 – June 1, 2008 (Thu – Sun)
Max. 15 participants, in English
Registration until May 22, 2008 at or Tel +49 – 231 – 823 106

In the framework of “Waves -The Art of the Electromagnetic Society”, HMKV in the PHOENIX Halle Dortmund, May 10 – June 29, 2008, opening: Friday, May 9, 2008, 19:00,

PHOENIX Halle Dortmund
Hochofenstr. / Ecke Rombergstr.

Tonewheels is an experiment in converting graphical imagery to sound, inspired by some of the pioneering twentieth-century electronic music inventions. Transparent tonewheels with repeating patterns are spun over light-sensitive electronic circuitry to produce sound and light pulsations and textures, while projected graphical loops and textures add richness to the visual environment. This all-analogue set is performed entirely live without the use of computers, using only overhead projectors as light source, performance interface, and audience display. In this way, Tonewheels aims to open up the ‘black box’ of electronic music and video by exposing the working processes of the performance for the audience to see.

The Tonewheels workshop will provide an introduction to simple techniques of optical synthesis using overhead projectors, transparencies, motors, lasers, LEDs, simple integrated circuit chips, photoresistors, phototransistors, and photodiodes. It will require no previous knowledge of electronics to take part. Participants will make simple circuits to turn light directly into sound and drive motors which can spin or move transparencies over these circuits. They will also have an opportunity to design sound-producing transparencies, either on the computer using Inkscape or similar drawing software, or by hand using ink pens.

Enquiries about the workshop, registration until May 22, 2008:
Hartware MedienKunstVerein, or Tel +49 – 231 – 823 106

Thu 11:00-19:00 Workshop
Fri 11:00-18:00 Workshop (from 18:00 video program “Abstracts of Syn” by Medienturm Graz)
Sat 11:00-19:00 Workshop
Sat 20:00 final presentation and performance by Derek Holzer
Sun 11:00 brunch

– the participants will pay the costs for travel, food and accomodation
– free admission
– HMKV recommends the City Hotel Dortmund ( or Ruhgebiet (

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