Project
2025 - Present
YEFF YEFF ( LIVE )
Audio Visual Journeys
YEFFYEFF is the new sonic and visual project from Grammy-winning artist Harry Yeff (Reeps100). Born in East London to a London-Irish working-class family, and shaped by a neurodivergent perspective, the project emerges from a deep need to express, adapt, and evolve beyond conventional music formats.
Combining voice, data, code, and light, YEFFYEFF creates large-scale audiovisual works that are generative, spatial, and emotionally charged. Influenced by electronica, ambient, and UK club culture, the sound palette spans raw vocal textures, dense rhythmic structures, and atmospheric minimalism—built for high-intensity listening and immersive environments.
"YeffYeff is the love of all that is in-between, relentless unapologetic exploring"
Harry Yeff
Yeff was heavily influenced by the raw energy of London’s underground scenes, drawing inspiration from the complex chaos of Aphex Twin and Venetian Snares, the weight and depth of Mala’s dubstep, and the emotional minimalism of James Blake. But it was the human voice that became his central tool, his way of pushing boundaries, telling stories, and escaping limitation.
His early experiments with beatboxing, often culturally dismissed as a novelty act rather than recognised as an experimental garden for voice and sound design, quickly evolved into something far more radical. Yeff pushed the form into abstract territory, fusing vocal performance with complex structures, texture, and compositional intent.
YeffYeff at the V&A
Yeff found a deep connection with spatial audio and immersive, experiential music spaces. These environments offered a freedom and dimensionality he had been seeking for years. No longer limited by stereo constraints or performance expectations, he could craft sound worlds that felt like home, vast, emotional, and alive. New media and experiential music opened up a new frontier, one where his vocal-driven practice could be fully realised without compromise.
Work
2023
LEIPZIG INTERNATIONAL BALLET
FUSION is a story of balance between the archetypes of human, machine, and nature. Much like a chess grandmaster using any method possible to improve play, composer Harry Yeff (REEPS100) employs every available approach to push his voice beyond what we believe to be possible. Yeff possesses one of the most unique and varied vocal ranges on Earth, and through his collaboration with A.I, he has surpassed even his own limitations.
Work
2022 - Present
VOICE GEMS
The VOICE GEMS project is a vibrant, unprecedented meditation highlighting the most remarkable, influential, and critically endangered voices on earth to generate digital gemstones and physical sculptures. The works exist as NFT's, print, 3-D print, digital video, large scale projection and cast sculpture.
Work
2019 - Present
CREATING AN A.I SECOND SELF
Second Self is an arts and science collaboration between Reeps One, Dada Bots and the E.A.T. program at Bell Labs created in 2018. The collaboration is a live performance piece designed to integrate machine learning and generative audio as a practical artistic tool and to raise awareness about machine learning beyond the academic, technological and engineering demographics via the medium of film. The film has been showcased at United Nations, Davos, Google Exec, Ars Electronica and more.
Work
2020
DAVOS 2020: VOICES OF LIGHT
Join vocal artist Harry Yeff, also known as Reeps100, and members of the London Contemporary Voices Choir on an immersive sonic and visual journey that explores the capacity of the human voice as a metaphor for its boundless possibilities for a deeper connection with others.
Work
2019
SEE SOUND
'See Sound' is a generative artwork experience that creates sound sculptures based on the human voice. Participants engage with the artwork via a microphone and hardware interface. They can trigger different visual constructions within the music visualizer, based on vocal experimentation. Each construction is a sculpture unique to its creator.
Work
2020
CNBC INTERVIEW
Work
2017
WE SPEAK MUSIC
We Speak Music – the documentary series – is a groundbreaking, artistic collaboration between the international world-class beatboxer and visual artist – Harry Yeff (aka Reeps One) and the world-renowned, technological innovator – Nokia Bell Labs. This collaboration is an investigative journey of human communication offering insights into the voice from a scientific, cultural, technological and artistic perspective while using beatboxing as the ultimate exploration of its potential.
Work
2017
DOES NOT EXIST VR
'Does Not Exist' won the award for Best Sound Design Experience at the 2017 Raindance Film Festival.
In collaboration with media innovation giants The Mill and Aurelia Sounds, I scored and performed in does Does Not Exist, the worlds first Virtual Reality music video made with gyroscopic 3D sound. The two and a half minute video shifts dynamically between acoustic experiences and atmospheres, combining abstract environments with surrealist elements and haunting, vocal composition. I am portrayed as an unearthly figure jumping freely between a playground of worlds, the experience transmits with physical and sonic accuracy an unworldly journey.
Work
2017
POLYPHONIC PLAYGROUND
In collaboration with Fashion Space Gallery and Studio PSK, Yeff created Polyphonic Playground—an interactive sound installation blending childhood play with musical innovation. Swings, slides, and climbing frames were reimagined with electric paint and trigger pads, transforming the structure into a large-scale instrument. By removing traditional tools, Yeff challenges musicians to explore sound through movement, curiosity, and play.
Work
2018
VOCAL VIBRATION IN WATER
A desire to visualise vocal music inspired me to experiment with audio-visual work and physical phenomena as early as 2012. Cymatics — the use of vibration as a medium to move, organise and control matter — has since constituted a prominent focus in my work.
I continue to reinterpret cymatics as a means for invention, developing custom-designed, large-scale visualisers for performance. The Cymatics photography series and live Cymatics performances received an ARS PRIX nomination in 2016.
Work
2018
CYMATICS LIVE PERFORMANCE
A desire to visualise vocal music inspired me to experiment with audio-visual work and physical phenomena as early as 2012. Cymatics — the use of vibration as a medium to move, organise and control matter — has since constituted a prominent focus in my work.
I continue to reinterpret cymatics as a means for invention, developing custom designed, large-scale visualisers for performance. The Cymatics photography series and live Cymatics performances received an ARS PRIX nomination in 2016.
Work
2019
ORGANIC ELECTRONIC VIBRATION STRUCTURE
A desire to visualise vocal music inspired me to experiment with audio-visual work and physical phenomena as early as 2012. Cymatics — the use of vibration as a medium to move, organise and control matter — has since constituted a prominent focus in my work.
I continue to reinterpret cymatics as a means for invention, developing custom designed, large-scale visualisers for performance. The Cymatics photography series and live Cymatics performances received an ARS PRIX nomination in 2016.
Work
2014
MUSICAL INTELLIGENCE THE ECONOMIST INTERVIEW
A champion for a new generation of young musicians, Harry Yeff is pushing the human voice to new musical, scientific and artistic heights.
Work
2014
Attention. Deficit. Order.
Attention. Defecit. Order. was my first major solo exhibition in London. With the exhibition, I explored the often-overlooked benefits of mental processes associated with Attention Deficit Disorder, including high functionality and hyperfocus. I wanted to challenge negative notions of hyperactivity and celebrate complexity through multi-media sensory installations demonstrating high levels of complexity, precision and cognitive flow. I wanted to subvert the idea of chaos normally associated with ADD.
Work
2016
YEFF & HOPPER
As part of the exhibition Attention. Deficit. Order., artists Yeff and Ben Hopper presented The Circle of Naked—a participatory body painting performance exploring empowerment through vulnerability and self-expression. Over fifty participants, including women, men, and children, became living canvases, engaging in a collective act of transformation. The physicality of the paint sparked a range of emotional responses, from shyness to bold embodiment, blurring the lines between observer and performer.
Work
2016
HARVARD RESIDENCY & ART TECH PSYCHE LECTURE
Invited by Arts @ 29 and the Linguistics Department, Yeff joined Harvard University as a guest lecturer and artist-in-residence. He began by lecturing on experimental vocalism in phonetics, drawing on his background as a beatboxer to explore psychoacoustics and voice innovation.
Work
2025 - Present