GBSR Duo
george barton & siwan rhys
about us
a wonderful, adventuresome, sensitive pair of musicians
- Kate Molleson, BBC R3
GBSR Duo - George Barton (percussion) and Siwan Rhys (piano) - combines two of the UK's finest young contemporary chamber instrumentalists. The duo has built its reputation on a combination of exceptional interpretations of the existing piano-percussion repertoire, committed performances of ambitious new commissions, and inventive collaborations.
Known for their fearless, intense and boundary-crossing performances, GBSR's work ranges from the twentieth-century modernism of Stockhausen and Ustvolskaya to music by Brian Eno and Aphex Twin; from the exquisite delicacy of composers like Morton Feldman, Eva-Maria Houben and Barbara Monk Feldman to the experimental and cross-genre work of Oliver Leith and CHAINES.
With an emphasis on commissioning and repertoire-building complemented by the respect and trust of composers, GBSR's recent world premieres include works from Eva-Maria Houben, CHAINES, Lawrence Dunn, Cassie Kinoshi, Alex Tay, Linda Catlin Smith, Julius Aglinskas, Tim Parkinson and many others.
Their freewheeling collaborations range from team-ups with leading musicians like the Heath Quartet, EXAUDI, 12 Ensemble, Sean Shibe, the Basel Sinfonietta and the LA Philharmonic, to inventive cross-disciplinary pairings with artists like Angharad Davies, Dejan Mrdja and Cameron Graham.
GBSR were the winners of the Royal Philharmonic Society 2025 Young Artist award, where the judges commended them for a “commitment to new music that’s thrilling in its fearlessness…their programmes and collaborations fizz with style, energy and invention”.
Recent performances include the duo's US debut performing Oliver Leith at Walt Disney Hall with the LA Philharmonic and Thomas Adès; the Darmstadt Festival performing Stockhausen and Aaron Holloway-Nahum; Festival d'Aix-en-Provence in collaboration with Oliver Leith and Ted Huffman; Stadtcasino Basel with Laura Bowler and the Basel Sinfonietta under Jamie Phillips; and Stockhausen vs Aphex Twin at the Southbank Centre.
In 2026 they are Artists in Residence at Kings Place, where their programme of concerts takes in celebrations of Morton Feldman and Steve Martland and new work by Beatrice Dillon and Sarah Davachi.
Forthcoming concerts include Tectonics Festival Glasgow, performing Oliver Leith and Laura Bowler with Laura Bowler, Ilan Volkov and the BBCSSO; the Barbican's St Giles' Cripplegate performing Tyshawn Sorey with the BBC Singers, Ruth Gibson, Davóne Tines and Tyshawn Sorey; and world premieres by Beatrice Dillon and Sarah Davachi at Kings Place.
See the concerts page for upcoming events as well as details of past concerts.
GBSR's recordings are praised for their exceptional fidelity and variety, whether bringing new depths of appreciation to existing repertoire through benchmark recordings of Morton Feldman, Stockhausen and Barbara Monk Feldman, or highlighting extraordinary new works in premiere recordings of Oliver Leith, Laurence Osborn, Eva-Maria Houben, Lisa Illean, Tim Parkinson, James Opstad, Alex Paxton and others. Their recording of Stockhausen's KONTAKTE on all that dust was hailed as “a landmark performance” by Tom Service on BBC Radio 3; it was made album of the week in The Guardian and named “the best spatial audio purchase I’ve made this year” by Seth Colter Walls in The New York Times in 2023.
Their latest release is a box set of the complete piano-flute-percussion trios of Morton Feldman.
See the releases page for full details of all GBSR's recordings.
Individually GB & SR perform as soloists and chamber musicians, and work with ensembles including the Colin Currie Group, Riot Ensemble, Explore Ensemble, London Symphony Orchestra, London Sinfonietta, City of Birmingham Symphony Orchestra, Royal Northern Sinfonia, Apartment House, Britten Sinfonia, Birmingham Contemporary Music Group, Nash Ensemble, OAE, London Contemporary Orchestra, Aurora Orchestra and many others.
GBSR Duo is an hcmf// Fielding Talent artist.



