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PD~Graz Blind date live @ NoD

connected 30. 01. 2007 21:40

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25/05/2006 8:00 pm
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35 min

blind date is an audiovisual performance which aims at an artistic extension of common patterns in computer programming: rather than featuring isolated programmers, two persons at a time are working together on a single Pd patch, both using their own physical keyboard, mouse and monitor but actually operating the same logical interfaces, e.g. the same mouse pointer. Since they have to share access to the machine, the two players need to coordinate their work in order to produce a functioning patch. Rather than merely representing a technical tool, the patch therefore also becomes the primary means of communication between the programmers.

Since the performance features two computers - one for audio, one for video - four players are programming at a time. The performance starts with a blank canvas (i.e. an empty patch), and participants are exchanged at regular time intervals, so that different combinations of programmers continue the work on the patches as left by their predecessors. Besides the resulting audio and video works, the patches themselves are projected into the performance environment as well. As opposed to usual objectives of audiovisual programming, this allows for a deep insight of the audience into the processes of programming and communication among the players.

blind date performers

So far, blind date has been performed at two different occasions: the "musikprotokoll im Steirischen Herbst" festival and the "net community congress", both in 2005. In the first case, an additional referee (Harald Wiltsche) had control over the exchange of the players.

further information


Pd (aka Pure Data) is a real-time graphical programming environment for audio, video, and graphical processing. Unlike in text-based programming languages, Pd programs ("patches") are built graphically by using "wires" to connect "boxes", which represent routines operating on the data. Pd is the third major branch of the family of patcher programming languages known as Max (Max/FTS, ISPW Max, Max/MSP, jMax, etc.) originally developed by Miller Puckette and others at the IRCAM (Institut de Recherche et Coordination Acoustique/Musique, Paris, France). The core of Pd is written and maintained by Miller Puckette and includes the work of many developers, making the whole package very much a community effort.

Pd was created to explore ideas of how to further refine the Max paradigm with the core ideas of allowing data to be treated in a more open-ended way and opening it up to applications outside of audio and MIDI, such as graphics and video.


The range of users and developers of Pd in the city of Graz, Austria covers a very wide spectrum, reaching from independent artistic production to academic research. Some of the most relevant extensions to the software are written and maintained by local developers (iemlib by Thomas Musil, zexy and Gem by Iohannes m zmölnig). Also, several local institutions have a long tradition of dealing with art in a technological context and contribute greatly to the community:
mur.at as a cooperation for the promotion of network art (http://www.mur.at)
the ESC gallery
the CC - mur.at's "competence center" competence center

Institute of Electronic Music and Acoustics EMA
the medien.KUNSTLABOR at the Kunsthaus Graz media art lab

In 2005, the Pd~graz group has been founded as a collaboration for the organization of artistic performances, workshops, etc. At the same time, the newborn Pd~ record label has published its first release: a DVD including artistic works presented at the Pd~Convention 2004. Current members of Pd~graz are: Lukas Gruber, Reni Hofmüller, Florian Hollerweger, Georg Holzmann, Karin Koschell, Thomas Musil, Markus Noisternig, Renate Oblak, Michael Pinter, Peter Plessas, Nicole Pruckermayr, Winfried Ritsch, Romana Rust, Uwe Vollmann, Franz Xaver, Ales Zemene, Fränk Zimmer, IOhannes m zmölnig



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