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Walled City Music presents


Tuesday 5 September
From £5.00
to £10.00
All orders will be subject to a fee of £1.50 except if your tickets are free or if you are a member

In a nutshell

Crumb’s iconic Black Angels, alongside new piece NonZeroSum, combining string quartet with a group of disabled musicians using new technology.

Go on...

In this richly immersive music event the renowned Benyounes string quartet join Acoustronic, a group of disabled musicians using tablets and other new music technology.

They’ll perform NonZeroSum, a new piece by Frank Lyons deriving from game theory concepts in which the amplified string quartet and five digital instruments come together and compete with no winner or loser. The piece has five distinct sections including improvisations whereby the players respond to graphic symbols drawn in real time using colour and shape coding.

Acoustronic will perform their own ambient soundworld combining samples, loops and some free improvisation in two new pieces – Music for 5 and Voices for 6.

In the second half, Benyounes perform George Crumb’s iconic Black Angels piece. Inspired by the horror of the Vietnam war the work draws upon an arsenal of sounds including shouting, chanting, whistling, whispering, gongs, maracas and crystal glasses. Crumb said, ‘Black Angels was conceived as a kind of parable on our troubled contemporary world. The work portrays a voyage of the soul through three stages…Departure (fall from grace), Absence (spiritual annihilation) and Return (redemption).’

This project was funded through the Calouste Gulbenkian Foundation (UK Branch) and the PRS for Music Foundation.

What to Expect

You’ll see a unique blend of conventional string instruments and players with digital instruments. You’ll hear a range of soundworlds – from ambient loops and digital samples to George Crumb’s astonishing use of conventional and unconventional instruments, including diabolical chants and angelic, transcendent expression.

Who's Involved


In 2015 this group of disabled and non-disabled young musicians came together to explore new, accessible ways of creating music as part of the Inclusive Creativity project. The name ‘Acoustronic’ reflects the mix of conventional instruments and music technology they use. Frank Lyons' new piece NonZeroSum is directly inspired by the group. 


Winners of the 2012 International Sandor Vegh String Quartet Competition in Budapest the Benyounes Quartet is gaining a reputation as one of the UK’s most engaging and dynamic young quartets. Formed in 2007 at the Royal Northern College of Music, the Quartet went on to win the prestigious Julius Isserlis Scholarship.

What people are saying

‘This was a totally new experience for me – amazing to see and hear the technology alongside the traditional instruments. Some of it sounded quite ‘clubby’, really ambient, while the Crumb piece was electrifying.’ Audience Member

‘So important to have this kind of work happening and giving people with disabilities a platform. Very moving event.’ Audience Member

Why does Rich Mix matter?

'Because it supports diversity in both artists and audiences. This performance brings together musicians with and without disabilities, using conventional and non conventional instruments. Rich Mix is the perfect space to showcase our work. '

Find out more

Things you should know

For ages 16+

This event is wheelchair accessible.