outHEAR Ensembles in Residence 2019

Klangforum Vienna

Mikael Rudolfsson, trombone


Mikael Rudolfsson (born 1987 in Stockholm) held a position as principal trombone with the Gävle Symphony Orchestra for one season when he was 20 and then continued his studies in Hanover and Basel. He can be seen as an actor/musician in several theater productions and was invited with ”Atlas der abgelegenen Inseln” to the Berliner Theatertreffen.

He has appeared with orchestras and ensembles like Gävle Symphony Orchestra and the Far East Philharmonic and played frequently as a guest with Ensemble Modern and Klangforum Wien. His passion for the music of our day has led to numerous performances at the most established festivals worldwide, like Donaueschingen, Huddersfield, Wien Modern, cresc… Frankfurt, and Festival Internacional Cervantino Guanajuato to name a few.

Besides that Mikael Rudolfsson is running his own constellations and ensembles like Ensemble Schwerpunkt, Trio HDR, Orchester im Treppenhaus.

He has recorded for broadcasting companies like Deutschlandfunk, BR, HR, SWR, NDR, SRF, and Wergo. Starting with autumn 2018, Rudolfsson teaches trombone at the Music and Arts University of the City of Vienna.

Mikael Rudolfsson became a member of Klangforum Wien in 2017.

Joonas Ahonen, piano


The Finnish pianist Joonas Ahonen has a scope of activities from Beethoven interpretations on historical pianos to the first performances of the music of our time.


Ahonen joined Klangforum Wien in 2011, a few years after graduating from the Sibelius Academy where he studied with Tuija Hakkila and Liisa Pohjola.

Ahonen’s appearances on BIS Records, Ligeti Piano Concerto with BIT20 Ensemble and Ives Sonata nr. 2, “Concord”, have won great critical acclaim.


His recent performances include West Cork Chamber Music Festival, Musiq’3 Festival in Brussels, Pekka Kuusisto’s Our Festival in Tuusula, Helsinki Philharmonic Orchestra, the Finnish Radio Symphony Orchestra, the BBC Symphony Orchestra as well as touring with selected Ligeti Studies in Anne Teresa De Keersmaeker production “Achterland”.

Dimitrios Polisoidis, viola


Dimitrios Polisoidis was born in Thessaloniki, Greece, in 1961. He studied the violin with Dany Dossiou in his home town and later attended the University of Music, Graz, where he was taught by Christos Poyzoides and also studied the viola with Herbert Blendinger. From 1990 to 1993 he was principal viola player of the Philharmonic Orchestra, Graz, and in 1993 became a member of Klangforum Wien.

Dimitrios Polisoidis is devoting himself mainly to new music and to performing with experimental improvisation groups. He was artistic collaborator in several live electronic projects at the Electronic Institute of the University of Music, Graz, (IEM Graz). He has performed internationally and worked with many renowned composers such as Peter Ablinger, Georg Friedrich Haas, Bernhard Lang, Klaus Lang, Gösta Neuwirth, Olga Neuwirth and George Lopez, who wrote works especially for him.

In 2012, the federal state of Styria awarded him the “Karl Böhm Interpreter’s Prize”. He teaches at the University of Music, Graz and at the Impuls Academy as well as at the International Holiday Courses in Darmstadt. His CD recordings have been released by the labels hatART (Basle), Kairos (Vienna), Klangschnitte (Graz), mode rec (NY), and Lyra (Athens).

Björn Wilker, percussion


Björn Wilker was born in Gelsenkirchen-Buer, Germany, in 1968.


He studied percussion at the Academy of the Arts, Berlin and at the College of Music in Freiburg im Breisgau with Robyn Schulkowsky, Bernhard Wulff and Isao Nakamura.


After extensively performing as free-lance percussionist in new music, he became a member of Klangforum Wien in 1993. From 1998 to 2000 he took a period of leave in order to study composition with Helmut Lachenmann at the Stuttgart College of Music.


In addition to playing with Klangforum Wien, Björn Wilker is active as soloist and composer.

Felix Martl, clarinet


Felix Martl, born in Austria, holds clarinet Konzertfach Master's and IGP Bachelor with Bertram Egger and also a Master's PPCM degree at the Kunstuniversität Graz.

Since 2005, he got lessons with Johann Hindler, Nick Kückmaier, Wolfgang Kornberger, Reinhard Uhl, Arnold Plankensteiner. He works as a solist and ensemble musician in various genres of music, from classic and contemporary music, to popular music and world music.

David Schmidt, trumpet

David Schmidt started playing the trumpet at the age of six. He started studying the trumpet and music pedagogy at the University of music and performing Arts in Graz with Stanislav Arnold and later moved to Germany to study with Wolfgang Guggenberger at the Academy of Music in Trossingen. After doing his Master for trumpet in Graz, he started to do a specific Master program for contemporary music which he finished in 2019.

Besides activities as a teacher for trumpet he played with Orchestras and Ensembles like the Opera Graz, the Austro-Hungarian Haydn Philharmonic, the Orchestra Wiener Academy, Concilium Musicum Wien, Hofkapelle Munich, Bach Soloists Vienna, Bach Consort Vienna, Ensemble Cordia in Brunnico, Concilium Musicum Wien, Ensemble Modern Orchestra Frankfurt, European Brass Ensemble, Klangforum Wien and the Croatian Baroque Ensemble.


He was participant at the Lucerne Festival Academy in 2017 and 2018 and is very active in the contemporary music scene.

Since he got the Austrian Baroque Academy Award in 2015 he is baroque trumpet recitals on a regular basis all over in Europe in places like the Festial ‘Winter in Schwetzingen’ in Germany, on the Island Elba in Italy or at the Musikverein in Vienna.

Kathrine Kirkeng Oseid, saxophone


Kathrine Kirkeng Oseid (born in Bærum in 1994) is a Norwegian saxophonist. She completed her bachelor degree in the Norwegian Academy of Music in the class of Vibeke Breian in 2017. Later that year she joined the renowned saxophone class of Lars Mlekusch in Zürich University of the Arts, and graduated in 2019. After that she got accepted to do a postgraduate in Performance Practice in Contemporary Music at the University of Music and Performing arts in Graz, with Klangforum Wien. Being interested in new music as well as orchestral music and chamber music, she has performed with, among others, The Norwegian Wind Ensemble, the Norwegian National Youth Orchestra and The Royal Norwegian Navy band.


Her repertoire extends from classical and baroque music to contemporary and free improvised music. She has worked with composers such as Vinko Globokar, Jorgé Sánchez-Verdú, Alvin Lucier and Peter Eötvös.


Since 2018 she has been a member of The Ever Present Orchestra, playing the music of and with the American composer Alvin Lucier. As one of the leading young saxophonists in Scandinavia she has performed in several festivals both in Scandinavia and through out Europe.

Leo Morello, cello


Leo Morello, born 1994 in Italy, studies Performance Practice in Contemporary Music with Klangforum Wien at the Kunstuniversität Graz. He graduated as a Bachelor of Arts from the Mozarteum University of Salzburg, where he studied cello with Enrico Bronzi. In 2017 he studied in the class of Stephan Forck at the Hanns Eisler Music Academy in Berlin. Very important for his formation were also the encounters with Antonio Meneses, Andreas Lindenbaum, Francesco Dillon, Marino Formenti, Reinhard Goebel.

He is a founding member of the New Art and Music Ensemble Salzburg, with whom he regularly performs in Europe. He also performed as a member of Klangforum Wien, Oenm Austrian Ensemble for New Music, WDR Sinfonieorchester, Maurice Quartet, Alter Ego Ensemble, International Ensemble Modern Academy, EUYO, Villa Musica Mainz and as principal cellist of the Orchestra del Teatro Comunale di Bologna.

His interest towards contemporary music led him to numerous collaborations with renowned composers like Enno Poppe, Georg Friedrich Haas, Bernhard Gander, Simon Steen-Andersen, Gerd Kühr, Achim Bornhöft, Reinhard Febel, Matteo Franceschini, Jose Maria Sanchez Verdu, Jorge Sanchez Chiong, Klaus Lang, Marco Stroppa.


He performed at Abu Dhabi Festival, Sydney Opera House, Klangspuren Schwaz, Megaron Thessaloniki, aDevangarde Festival, Daegu Contemporary Music Festival, Philharmony St. Petersburg, Impuls Festival Graz.





New music week 2019

with the Ensemble 


photo courtesy of Monika Rittershaus

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