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Platform for augmented  theatre work and covert performance. Interzone Theatre merges psychogeography with the psychoacoustic.

​A sound based exploratory theatrical experience where the buildings, parks and waterways serve as a backdrop, and passersby become unwitting extras in a psycho-geographical interactive journey through the cityscape.

Passersby might see the dots but only you can connect them and see the narrative unfolding with each zone you step in. You are given headphones and a start point, its up to you to find out the ending.


Get the free Interzone App for an iPhone or Android smartphone.​ At this stage, the App is only useful when the production is taking place

The Interzone app is powered by Mobile Explorer

Libretto, direction and sound 

Rebecca Horrox

Welsh translated Non Tudur

Commissioned by Soundlands 2015


Angharad Davies – Ceffyl Dwr

Ceri Rhys Matthews – Dragon and the Voice (Welsh)

Ebe Oke – The Voice (English)

Julie Murphy - Sundew and Butterwort

Meilir Jones – Pen-Bele, God of Death

– Rock

 Sianed Jones - Teffradot

Steffan Rhys Hughes – Prince





A new opera set in motion by a walking audience in the mountains of Eryri (Snowdonia). Heard via headphones, it relays a modern myth set around Lyn Idwal, the lake at the bottom of a glacial valley. Through song, eight characters, Sundew, Butterwort, Ceffyl Dwr, Dragon, Prince, Rock, Pen-Bele God of Death and the Teffradot emerge from the water, ice, rock, flora and fauna voicing stories of shape-shifters, immortals from the other-world, the eternal and ephemeral beings of Cwm Idwal.


Upon the moraines, carnivorous flowers, channel prophecy from the dreams of a sleeping giant buried underground; a raven lingers on the beach, its golden eyes glow brightly. Battered by wind, forged by fire and carved by ice, the brutal syncline, cuts its iconic jagged ridge against the sky, mist suspends itself over black cliffs. Underneath a young girl, sits on a large boulder stroking the head of a pine martin lying in her lap. She is the Teffradot, scourge of the rocks of Twll Du, also known as the singing bitch, it awaits its next victim. The protagonist Prince Idwal is intent upon hunting this queen of deception down.


Traditional welsh melodies are cut-up, rearranged and transformed, echoing the scarred, shattered rock face. Instruments of a bygone era side by side with new, join eight voices to echo in the mountain, to symbolise a state of pure eternity.




Alon Malka – Harmonium and piano.

Angharad Davies- Violin.

Ceri Rhys Matthews– Flute, pibgorn, Welsh bagpipes, sruti and acoustic guitar.

Gwen Mairi – Harp. 

Michael York - Border pipes, smallpipes and duduk.


Thanks to:

Rhidian Griffiths

Nin & Simeon

DPA Microphones

Richmond Film Service

Fossil Studios London

Mwnci Studios West Wales


We spend 11% of our existence dreaming, a full month of each year, that's more time than we spend eating. While the body lies still the mind wanders, free of limitations of time and space. This story poses the possibility that a conscious dreaming mind could share other people's real waking experiences.


The Oneironaut, a dream traveller, reawakens perpetually into a dream. Confusing memories and reality, he tries to use dream logic to return to his sleeping body. As he occupies your consciousness, he guides you through the park and through to his realisation of the somber truth.


Story, direction and sound  Joel Cahen

Voices: Steve North, Lesley Ewen, Manolis Emmanouel, Frank McLaughlin

Images Conny Prantera


Start Location:

Chalkwell Hall, Chalkwell Park

Southend on Sea. SS0 8NB 

Duration: around 40min


Commissioned by METAL 2015


HERO WITH SEVEN FACES | The Myth (Zurich) | The Panopticon (London) | In Four Minds (Belfast) 




commissioned for the

DIgital Art & Peformance Weekend  7 - 9 Nov 2014


at Watermans Art Gallery

40 High Street, Brentford, West London, TW8 0DS


Chronomotive describes the moment in the present when you realise you are the future you projected from the past.


it is this reflection that reveals the chronomotion, a trajectory in time between two distinct events:

the vision and its revision


Duration: 35min

As you walk around the Watermans Art Centre you follow the astronomer Charlie Green; Trans-man Michael Dillon; archeologist Gertrude Caton; king of Britain Cassivellaunus; and worshippers of the god Chronos. All weaved in an abstracted poetic reality and site specific artwork.


The Chronomotion Is The Awareness Of A Trajectory Between Two Events In Time, Between The Past Self And The Present Self

What Triggers This Awareness?


Some Say That Dreams Are Chronomotive.

The Places, The Situations And The Unfamiliar Faces That Appear When The Mind Is Unhinged On Physical Reality, Do They Belong To A Different Time?


Are They The Faces You Would Have Met Had You Decided To Do One Thing And Not The Other?


Interzone Theatre presents an augmented reality walk

The Hero with Seven Faces conjures seven archetypes of the creative consciousness mapped out in a surreal 30min walk. Using immersive sound design and surreal narrative to imbue the listener into a parallel interpretation of the urban environment

The free Interzone Theatre App and more on the project here

Powered by Mobile Explorer​


ZURICH | Launched 26 Oct 2012 as part of reART:theURBAN

Seven archetypes mapped out on Zurich's Old Town


Text, sound and image by Joel Cahen

Narration by Ebe Oke

Voice by Julia Katarina


LONDON | Launched 23 Mar 2013 as part of Sprint Festival

​Additional narration by: Wajid Yaseen, Seven Wolf, Joel Cahen

Seven archetypes expanded. Does the All Seeing Eye offer protection? or is it a reflection?


BELFAST | Launched 27 Apr 2013 as part of Sonorities Festival

Additional narration: La Horrox

Seven archetypes expanded. A journey of the Individual Mind through the Biological, Social, Intellectual and Dynamic Minds

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