Everything vibrates – from the smallest atom on Earth to the furthest star in space. Their frequencies surround and immerse us and yet the vast majority leave no imprint.

hertz gives a glimpse into this hidden universe, making inaudible sound tangible, visible and real. Sense the imperceptible soundtrack of a city in real-time and immerse yourself in its deep resonance. Listen to the secret songs of stars found in the constellations of Cygnus and Lyra. Harness their harmonics to generate beautiful visual patterns in sand on vibrating plates.

hertz encourages curiosity, questioning perceptions of our planet and place in the cosmos through sensory experiences.

An artwork by artist Juliet Robson in collaboration with academics from the fields of astrophysics, meteorology and mathematics.

Co-commissioned and supported by Unlimited, celebrating the work of disabledartists, funded by Arts Council England. Co-commissioned and supported by We The Curious and Oxford Contemporary Music.

Supported by:

University of Birmingham, The Friends of the University of Reading, University of Reading and 101 Outdoor Arts creation Space.

Part  of Season  for  Change, a  UK wide  programme of  cultural  responses celebrating  the  environment and  inspiring  urgent action  on  climate change.


Listen to an excert of Max Reinhardt featuring hertz on BBC’s Radio 3’s brilliant Late Junction (‘What a totally astounding, amazing project’ Max Reinhardt). Scroll down for tour dates and links to venues.

For podcasts go to: hertz podcasts

For Vimeo go to:hertz vimeo


hertz tour images 2018 -19

OCM @ IF Festival Oxford

14 OCT 2018


Quotes: “Love how it is very interactive and engaging, can be as complicated as you like, brilliant!”

“Really fun and exciting” “Amazing and fascinating, it was wonderful.”


18-21 OCT 2018


Quotes: “Amazing, simply stunning”  “Infrasound is the new Rock and Roll”

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4 NOV 2018-2 FEB 2019




Hertz at After Hours at We The Curious, Bristol.

We had a fantastic time at We The Curious for the After Hours event with visitors hearing the sound of the star Kepler 36 and making the visual pattern of its frequency (hz) appear, the theme was Time.

hertz is an Unlimited R&D award recipient, lead artist Juliet has been collaborating with scientists and a mathematician. hertz is supported by The University of Reading and The university of Birmingham.



scroll down for images

After Hours 6After Hours 8After Hours 1After Hours 2After Hours 4After Hour 4Afterhours good2WTC good5WTC 3 good

So here’s the overview of the night with some time related facts about the stars: We The Curious pdf

Quotes from the night:


“hertz was really exciting! As an artist I really enjoyed being able to see the patterns created and how I might be able to work with those. It was great to meet Juliet and be able to talk to her about the actual development of the work!”



“Being able to visualise the patterns really helped me connect to the sound – I especially liked where the frequencies began to look like constellations and stars themselves. There was a real buzz from our visitors who were really intrigued by the subject matter I thought. Using art to be able to bring infrasound to life really seemed to work for them!”





hertz at the Be There At The Start Conference.

We have been giving people some truly extraordinary experiences with a few public outings of hertz recently:

Last month I was at the Be There At The Start conference at the Attenborough Arts Centre Leicester. First off, I and Dr Andrew Gibbs were on a panel talking about cross sector collaboration. During the Panel discussion, we played the sound we had translated from Bull Chaplin’s research data,  of  the star Kepler 36  which lives in our constellation of Cygnus. It was the stars first public outing and was rewarded by a round of applause from the audience

Click ‘here’ for a transcribed interview and podcast of interview with Bill Chaplin, including a recording of the sound of Kepler 36, explaining How and why the stars make sound and why he is collaborating on hertz 

I then had a fantastic afternoon showing of the hertz prototype that lets people experience the inaudible symphony of our planet aurally and bodily For the first time people could experience the secret sounds of our planet in realtime. In this instance Leicester’s urban composition.

Below are some pics click ‘here’ For a transcribed interview and podcast with Dr Graeme Marlton explaining infrasound and his interest in hertz.

Quotes from visitors about both elements of hertz:

‘Epic’, ‘Groundbreaking’ ..’a whole world around me I couldn’t see but felt connected to’

‘In this piece I can time travel and contemplate the geometry of sound into matter – wow – mindblowing’

‘I heard the stars sing in Newbury!’

Next up hertz will be at After Hours  at We The Curious in Bristol with the theme of Time on the 19th April. See you there!







hertz Update

A lot of work has been going on hertz – wise recently.

Unlimited has offered  co-commissioning funding for a tour linked to Seasons for Change which is very exciting. So I have been beavering away to drum up business and develop the prototypes. If you are interested in co-commissioning hertz I would be very pleased to here from you!

I have been doing some professional development at 101 in Newbury, a wonderful place if you are interested in making work for the outside check them out. It’s a Willy Wonker’s factory for creatives.

I will be on a panel talking about cross sector collaboration on the 23rd March at The Attenborough Centre where I will be also showing the prototype which allows you to hear and experience the very low inaudible symphony of our planet. We have been working to be able to do that in realtime and will be showcasing that aspect on the 23rd.

The prototype which allows you to hear the sound of the stars and see the patterns their frequencies make is being worked on so that it can be shown at an After Hours event at We The Curious in Bristol on the 19th April so if you can do come and enjoy a fascinating and fun evening.

lastly for now but not least I am finally posting the article about hertz written for Disability Arts Online, the latest picture of the star machine at 101 and a clip of Graeme Marlton’s reaction to experiencing the infra sound of a summer storm 100 kilometres off the coast. You can’t hear the deep noise through computer speakers you can only experience and hear them through a large low frequency sub woofer speaker.

For the article about hertz here 

For Graeme experiencing the summer storm click here

Below, images of the professional development at 101, a close up of sand patterns of star frequencies and the new adjustable tripod legs. Hmm, should we sand blast them back to the metal or spray paint? decisions, decisions….




Open Day Success!.. Through the hertz Looking Glass


On 2 November 2017, I held an Open Day at my studio in Oxfordshire and invited current project collaborators, interested future parties and a journalist from Disability Arts Online to experience progress we have made so far on hertz.

hertz, after all, in its current incarnation remains a research and development (R&D) project, so it felt like a significant step in its evolution to allow people to peer through the looking glass, so to speak, of my studio and see work in progress. At the beginning of the Open Day, I delivered a presentation. Below is an extract focusing on my motivation for founding the project:


hertz is fantastic for me in that it gives me the opportunity to go more in depth and develop a particular side of my practice, and it brings together beautifully passions and interests of mine:

  • A love of music and fascination with sound that began with classical training in voice and was followed by 20th century composition and contemporary art at university
  • An awareness that everything around us resonates; that we are living in an invisible world of harmonics, both natural and manmade. This web that surrounds us fascinates me
  • Also, as a singer and a teacher of singing I’m very aware of acoustics and resonance in different environments and how resonance is used by and affects our own bodies
  • A love of the natural sciences. I had parents who were keen to share their own love and knowledge of the natural world including constellations and moon cycles
  • I am a member of darkskies.org and painfully aware that we are losing our dark skies for the next generation and the environmental effect of light pollution
  • A deep respect and affection for scientists and what they do. My father was a research scientist – a plant physiologist – who encouraged curiosity and creativity. He was also a great friend. We had many debates about art and science and he was an uncredited collaborator on a number of works. He would have been itching to get involved in hertz
  • Lastly but not least I am innately curious about how things work, why things are and what they do. My least favourite answer to a question is, ‘Because that’s how it is’, or, ‘It’s always been like that’. I earnt the nickname of ‘Fingers’ Robson in my family for my ability to take things apart and not be able to put them back together again, something I am still guilty of. I blame my grandfather who I was close to and was an engineer and inventor

As I was first researching for a potential project, I came across the amazing fact that stars really do make music in an article by Birmingham university. An idea formed to make the sound of the stars audible and to use a Chladni plate to make the signatures of those sounds visual.

So, I got in touch with Professor Bill Chaplin from Birmingham university’s Astronomy and Physics Department and politely asked if he was interested in collaborating and supporting an art application for R&D. Happily he was! Through conversations and visits, Bill explained that gases inside sun stars create harmonics like air passing through musical instruments and create their own unique pitch and tone. This trapped resonance makes them gently breath in and out, creating regular fluctuations in the light they emit.


The Singing of the Stars

Bill leads a team from within the international Kepler Asteroseismic Science Consortium (KASC) responsible for studying stars similar to our own sun. Asteroseismology is a rapidly growing field of astronomy. Bill has been using data from the Kepler Project, which has recorded the ‘singing’ of more than 2,000 stars in our galaxy.

He studies these stars searching for orbiting planets in our galaxy, fluctuations of light and therefore resonance, which tell him how big and how old the stars are. Through that he can find planets which maybe like Earth lie in a ‘Goldilocks Zone’ like ours – i.e. not too hot and not too cold to support life.

In Bill’s own words: “Stars resonate like musical instruments. KASC may be able to use this ‘music of the spheres’ to help us understand the origins of solar flares and coronal mass ejections, so we are better able to predict events like solar storms and their impact on us.”

At the same time as the partnership with Bill was developing, I sent another email outlining the project to Reading university, also enquiring if there was anybody working with inaudible frequencies who would be interested in working with on the project.

Another lovely man, Andrew Gibbs, a mathematician and a sax player got back to me. Andrew’s PhD research broadly focused on what happens when sound hits two-dimensional obstacles and bounces back. Dr Graeme Marlton from the University of Reading’s Meteorology Department brilliantly also responded.


The Human Range of Hearing

Through the Atmospheric Infrastructure Research in Europe (ARISE) project, Graeme has access to infrasound data recorded at international stations of many natural and man-made phenomena below the human range of hearing.

This data can be used for research to observe events such as earthquakes and volcanic eruptions as well as detecting nuclear explosions. These sensors are constantly recording and storing this data. They are also recording and storing a treasure trove of other fascinating phenomena that is not used in research. Myself and Graeme want to bring them into the light of day for people to experience. These include things, as I mentioned earlier like, the movements of glaciers, oceanic waves and even comets hitting the earth.

Graeme was keen to be involved in hertz so that people can discover more about infrasound, what it is and does, and to learn more about why this inaudible sound is being produced all the time.

Rock Stadiums

Using a large subwoofer of the kind used in rock stadiums, that resonate very low frequencies, we can make infrasound audible. We linked the same frequencies to a transducer called a butt kicker used by videogamers and attached it to a metal framed wheelchair.

Until we made the sound files and put them together with the equipment, we did not know for sure what we would get, so there have been some tense and then excited moments along the way. The funny thing with very low frequencies is that they only become audible through this kind of speaker. When writing the code to translate them, Graeme cannot hear it through his computer speakers and it is impossible to record the sound from the subwoofer and play it back through any kind of normal speaker.

Naturally, there is a real moment of anticipation each time while we wait to see if it has worked and what it will sound like. I have happily adopted Graeme’s catchphrase of, ‘Boom in the room’ every time we play a new file and it works. There is still much to do.


What Now?

I have been thinking about the fact that on one hand hertz has a visceral experience of phenomena of our own planet, which we are inextricably, physically bound to and on the other a manifestation of the stars that weave through our art, literature, philosophy, religion, science and culture. It provides us with inspiration, aspiration – an opportunity for reflection to put our place in the galaxy into perspective. Ultimately, we want to create truly extraordinary and interactive artworks.