An audiovisual performance by And They Built Churches and Georgios Cherouvim.

This act is an online live dialogue. A bi-directional improv work during the quarantine days.

Melodic lines from the Byzantine musical womb and Countertenor vocals will meet with Shamanic voice drones, animal voices and rhythmic patterns. A​ liturgy about oneness.​ 

The algorithmically generated images evolve and shift between ambiguous shapes and the human form, in an elegant interplay between synthesis, metamorphosis and image decomposition. 


  • Duration: ~ 60min

  • The performance will take place on June 14th - 3:00PM EST and the link will remain public for 24 hours.


Labros Filippou - Live vocals - sound production

Georgios Cherouvim - Visuals


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It's been a while now that we've been talking with my friend Labros about a collaboration and the lockdown was in a way a catalyst for it.

The core functionality for this touchDesigner project came from a different audiovisual piano performance I've been working on for the past 6 months for the Nostos festival in Athens . Unfortunately this was postponed for next year so I thought it would be nice to switch gears and repurpose part of the work for Labro's act.

Even though we both live in NY, we work and rehearse remotely due to the quarantine. To avoid latency and audio sync issues, Labros is streaming his audio and camera feed to a private youtube event. I load this in VLC and using NDI I bring it into touchDesigner. The final result goes back out via NDI to OBS which streams out to the public youtube channel. Even though the final stream has several seconds latency from the original performance, the audio stays in sync with the image and that's enough for Labros to get some visual feedback on his end.

The setup itself is built around a glsl compute shader that simulates thousands of line primitives that act on various forces and logic as well the video feed. Rather than using cuts or mixing different patches, the entire performance is one continuous simulation gradually shifting between a set of states and behaviours. There is no audio interaction, but everything is controlled live via a midi pad.