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Upcoming and Past Events

  • Poliphonia: Diphonon Duo - Music from the Americas
    03 Nov, 19:30 GMT
    1901 Arts Club, London, 7 Exton St, London SE1 8UE, UK
    Poliphonia is delighted to present Diphonon Duo with the original combination of accordion and viola in a programme with several premières and a special celebration of the centenary of Piazzolla.
  • Musical Youth of Seville - Opening Concert of the Season 21/22
    22 Sept, 20:00 CEST
    Teatro Cajasol - Sevilla, C. Chicarreros, s/n, 41004 Sevilla, Spain
    We invite you to the opening concert of Musical Youth of Seville Festival!!!
  • Music on the Green lunchtime concert: Diphonon Duo
    15 Sept, 13:15 BST
    Christ Church, Esher Green, Esher KT10 8AF, UK
    Watch the recorded concert here: https://youtu.be/YgDfRkYQ0mw
  • Live Music Now - Lunchtime Concert at Northbourne Court Care - Private Event
    12 Sept, 14:30 – 15:30 BST
    Northbourne Court Care, Harland Ave, Sidcup DA15 7NU, UK
    Lunchtime Concert for residents and staff of Northbourne Court Care
  • Live Music Now - Online Lunchtime Concert - Southmead Hospital - Private event
    18 Aug, 13:00 – 14:00 BST
    Online Event
    Online Concert for patients and staff!!
  • Music-at-Hill Lunchtime Recital at St Giles-in-the-Fields
    28 May, 13:15 – 14:00
    Saint Giles-in-the-Fields, 60 St Giles High St, West End, London WC2H 8LG, UK
    Programme to include Handel, Ravel and de Falla.
  • Live Music Now Live-Streaming Interactive Concert for Denville Hall (Private Event)
    12 May, 11:00
    Online Live-Streaming Interactive Concert
  • *Update - Recorded Concert will be published online - 09/05/2021 Concert in Faversham Assembly Rooms
    09 May, 14:36 BST
    Online Recorded Concert
    Works by M Ravel, M De Falla, Lewis Murphy, Joaquin Taboada, Martin Lohse, M Marais, Andreas Makris Link: https://youtu.be/hkeN4oqgNmo
  • *Update - Recorded Concert will be published online- Date TBA* Recital in Händel House
    04 May, 18:30 – 19:30 BST
    Online Recorded Concert
    G F Handel - Gamba Sonata J S Bach - Gamba Sonata Martin Lohse - Koncert M Marais - Les Folies d'Espagne (Selection) G F Handel - Violin Sonata op.1, no.13
  • *Update - Postoponed for next season - Date TBA* Lunchtime Concert - Music on the Green, Esher
    21 Apr, 13:10 BST
    Christ Church Burial Ground, 5A Church St, Esher KT10 8QS, UK
  • *Update* Recorded 'as live' - Leatherhead Methodist Church - Music on Thursdays
    Thu, 08 Oct
    08 Oct 2020, 12:30 BST
    Original music and transcriptions for viola and accordion from different styles and ages. Pieces by Handel, Britten, De Falla, Lohse, Taboada, Marais..
  • CANCELLED due Covid-19 - Concert in Andalusia, Spain
    19 Jul 2020, 19:00
    Chipiona, 11550 Chipiona, Cádiz, Spain
    Chipiona festival - Juventudes Musicales de Chipiona)
  • CAVATINA Family Concert: Viola’s Time-Travelling Musical Adventures
    14 Mar 2020, 15:00
    Wigmore Hall, 36 Wigmore St, Marylebone, London W1U 2BP, UK
    Recommended for families with children aged 5-7
  • Astor Piazzolla 'Maestro del Tango'
    Thu, 14 Nov
    The Greek Orthodox Cathedral of the Holy
    14 Nov 2019, 19:30
    The Greek Orthodox Cathedral of the Holy, Golders Green Rd, Golders Green, London NW11 8HL, UK
  • Wigmore Hall Family Day: Journey to the Moon
    08 Nov 2019, 10:30
    Wigmore Hall, 36 Wigmore St, Marylebone, London W1U 2BP, UK
  • Recital at St Clement Danes
    Tue, 29 Oct
    St. Clement Danes’ Church
    29 Oct 2019, 13:10 – 14:00
    St. Clement Danes’ Church, Central Church of the Royal Air Force, Strand, Holborn, London WC2R 1DH, UK
    Delighted to invite you to our Lunchtime concert at St Clement Danes. Please come to enjoy some beautiful music! Tuesday 29th of October, 1:10pm Central Church of the Royal Air Force, Strand, Temple, London WC2R 1DH Concert is not ticketed; entry is free
  • Diphonon Duo Lunchtime Recital at St James Piccadilly
    20 Sept 2019, 13:10
    St James's Piccadilly, 197 Piccadilly, St. James's, London W1J 9LL, UK
    Join us this Friday to take part in our exciting our musical journey!!
  • Evening Concert at St Mary's Lichfield
    Wed, 22 May
    St Mary’s Market Ln Lichfield
    22 May 2019, 19:30
    St Mary’s Market Ln Lichfield, Lichfield WS14 0AU, UK
    Performed by Michael Iskas, viola & Iñigo Mikeleiz Berrade, accordion



About us


Diphonon Duo is a viola and accordion duo formed by the Greek viola player Michael Iskas and Iñigo Mikeleiz Berrade, accordionist from Navarra (Spain). Michael and Iñigo met in 2015 during their Masters of Arts studies at the Royal Academy of Music and after discovering they share common musical interests, they decided to establish this ensemble.

The word "Diphonon" means in Greek "two voices".

The combination of accordion and viola, bow and bellows, is an unusual duo, however the two instruments have more similarities than we think, since both are able to sustain sound for long time and vary its color and intensity. For string players, this possibility is a very interesting item to explore. The great cello player Mstislav Rostropovich said that "If cellists want to discover the possibilities of the cello, they should play with accordion and not piano".

The repertoire performed by Diphonon Duo reaches different styles and ages. From original works for the duo, to transcriptions of baroque and classical music. The duo involve the audience in journey through time and space, from the 17th century, with the great British composer Henry Purcell, to the present day, being able to appreciate contemporary but very stylistically different pieces from distant countries such as Argentina, Denmark, Spain, the eastern Mediterranean Sea and Japan. Many of the works performed by Diphonon Duo reflect traditional elements of various regions of the world (for example dances, rhythms, songs). The ensemble’s repertoire includes composers such as Benjamin Britten, Astor Piazzolla, Graciane Finzi, Martin Lohse, Arvo Pärt, Gorka Hermosa, J.S.Bach and many others. As the repertoire for this combination of instruments is quite limited, during the last year some composers have offered to create contemporary pieces for Diphonon Duo, specifically written for accordion and viola.

Diphonon Duo performs in various venues in London, UK and Spain such as the Wigmore Hall, St Martin in-the-fields, St James's Piccadilly, Royal Academy of Music, British Museum, Colston Hall (Bristol), Seamus Heaney Home Place (Bellaghy, Northern Ireland) and Civican Centre (Pamplona, Spain) .

During the course 2017-18 they were appointed as Wigmore Hall Learning Ensemble, being regular collaborators since then, and from 2019 they are members of Live Music Now, an organization that works with a very diverse range of people that rarely, if ever, have the opportunity to experience live music .

The duo has received coaching and guidance from eminent musicians such as accordion professor Owen Murray, Mario Stefano Pietrodarchi, Mie Miki and Bjarke Mogensen (accordionists), viola professors James Sleigh and Roger Chase and violist Garth Knox. This has shaped the stylistic perception of the ensemble depending always on the unique character of each composition.



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