An improvisation duo, an attempt of aligning, orienting, coupling systems with one another.

In autumn 2014, Hanns Holger Rutz and David Pirrò founded the algorithmic improvisaiton duo Anemone Actiniaria. They have played various concerts, and were conducting an artistic research project at ZKM Karlsruhe in 2015.

During the project period of the Algorithms that Matter research project, Anemone Actiniaria is part of its method and its objects of practices and observation.

A forerunner project on the iterative and durational nature of algorithms, their resistance to coming to completion.

june.2016 - january.2017 


⬀Algorithms that Matter (ALMAT) is an artistic research project within the framework of the Austrian Science Fund (FWF) – PEEK AR 403-GBL – and funded by the Austrian National Foundation for Research, Technology and Development (FTE) and by the State of Styria. It is hosted by the Institute of Electronic Music and Acoustics (IEM) at the University of Music and Performing Arts Graz.

impuls academy 2017

Workshop in the special programme of impuls academy, co-tutored with Agostino Di Scipio 


Graz, 10.02.2017 - 22.02.2017

Exhibition project on becoming swarm, becoming a holobiont. Almat contributed to its micro-symposium.

23.08.2017 - 19.09.2017 

Akademie Graz, Neutorgasse 42, 8010 Graz


The first reseearch iteration was conducted with composer, installation artist and computer music pioneer Ron Kuivila.

Experimenting with ultra-sound; creating feedback configurations with ultra-sound; visiting Riga; talking about Hayles' Unthought; understanding the Patterns library by translating it to a different framework.



The second iteration was conducted with artist and composer Erin Gee.

BioSynth: coupling physiological signals to sound synthesis; affective computing and physiological effect of emotions;


A "workshop-in-exposition" implemented in collaboration with BEK Bergen Center for Electronic Arts and a group of artists who responded to our call for participation.

08.06.2018 - 15.06.2018 

Lydgalleriet, Bergen, NO

A modular installation series investigating the relationship between the algorithmic and the corporeal.


Lydgalleriet, Bergen, NO             xCoAX 2018, C Arte C, Madrid, ES


The third iteration was conducted with sound artist and music-technology researcher Jonathan Reus.

Incorporating story telling into live coding perfromances; speech recognition experiments: building a smart classifier / feature detector; SC SynthLibrary class:  collects and catalogues synths created during live performances.

Embedded in the ZKM festival inSonic, we issued a special call for presentations (papers and performances) around the question of spatialities of the algorithmic.

07-08 Dec .2018 

ZKM, Karlsruhe, DE



Workshop in the special programme of impuls academy, co-tutored with Robin Minard.

11.02.2019 - 21.02.2019 

MUWA, Friedrichgasse 41, 8010 Graz

The fourth iteration was conducted with researcher and composer of instrumental and electronic music Luc Döbereiner.

Contingency and synchronisation; Kuramoto: a model for synchronisation (web installation); Hopf oscillator: sound installation; WRECK: writing a small DSP language; iteration vs recursivity;


An artistic research seminar in collaboration with the ‘Music, Thought and Technology’ group of Jonathan Impett at Orpheus Institute Ghent.

21-22 March .2019 

ORPHEUS Institute, Ghent, BE

A collaboration with the European Master Module in Art, Science, Technology (MAST), coordinated in Austria by the Institute of Spatial Design of the TU Graz.

08-12 April .2019 - Workshop

May / June 2020 - Exhibition

ESC medien kunst labor, Graz


Masterclass by David Pirro at the Conservatory of Piacenza, Italy, 6-8 November 2019



The fifth and likely final iteration centres around the practices of the ALMAT core team and the works created for the 2020 exhibition Algorithmic Segments. From beginning of 2020, the team is joined by guest artist Ji Youn Kang.

A project on digitality and urban future, in the framework of Graz Kulturjahr 2020. Almat contributes several of the digital and sound art works exhibited in various art spaces in the city of Graz, and connected through a digital sound walk.

Multiple openings and exhibitions, from May to July 2020

City of Graz


An experimental sound installation for Kunsthaus Graz, investigating the possibility of "parallel movement" betwen four artists—Ji Youn Kang, David Pirrò, Daniele Pozzi, Hanns Holger Rutz—and if they will arrive at a shared algorithmic writing.

08.05.2020 - 12.07.2020

Kunsthaus Graz


Arising from a collaboration between ALMAT and EU project MAST (Master Module in Art, Science and Technology) at the Institute of Spatial Design of TU Graz, the outcome is a spatial and sound installation, the sound composition of which—a cascading coupling between the systems of Pirrò and Rutz—has been developed during artistic research iteration 5.

03.06.2020 - 12.07.2020

esc media art lab Graz


The ALMAT symposium is the culminating event, bringing together an international community of artists and researchers concerned with the context and questions arising in ALMAT. The symposium takes place adjoining the 8th Conference on Computation, Communication, Aesthetics & X (xCoAx), producing thus synergies and contact with a larger group of professionals.

06–10 July 2020
, AT
exhibition: Forum Stadtpark, Grazer Kunstverein