In October 2007 he conducted « les Etudes d’après Séraphin » by W. Rihm, for the tenth anniversary of the ZKM, with the Ensemble für Neue Musik of the Musikhochschule Karlsruhe, and the Ballet of the Staatstheater of Karlsruhe.
Wolfgang Rihm orchestrated 1988/89 a text written by Seitz’ former partner Wolf Wondratschek Mein Tod. Requiem in memoriam Jane S. for soprano and orchestra.
In the United States and abroad, he has premiered and recorded works of many contemporary composers, including Charles Wuorinen, Milton Babbitt, Elliott Carter, Lasse Thoresen, Gerard Grisey, Jonathan Dawe, Tristan Murail, Ralph Shapey, Luigi Nono, Mario Davidovsky, and Wolfgang Rihm.
A year later he became a composition student of Kay Westermann (born 1958), subsequently also studying with Hans Werner Henze, Wilfried Hiller, Heiner Goebbels and Wolfgang Rihm.
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Several clarinet concerti have been dedicated to Widmann and premiered by him: in 1999 through "musica viva", he played Music for Clarinets and Orchestra by Wolfgang Rihm, and in 2006 with the WDR Symphony Orchestra, Cantus by Aribert Reimann.
Wolfgang Amadeus Mozart | Johann Wolfgang von Goethe | Wolfgang Rihm | Wolfgang Tillmans | Wolfgang | Wolfgang Petersen | Wolfgang von Schweinitz | Wolfgang Pauli | Wolfgang Sievers | Wolfgang Puck | Doyle Wolfgang von Frankenstein | Wolfgang Zinser | Wolfgang Wagner | Wolfgang Köhler | Wolfgang Knabe | Wolfgang Grams | Wolfgang Benz | Wolfgang Becker | Wolfgang (band) | Wolfgang Wickler | Wolfgang von Trips | Wolfgang Tiefensee | Wolfgang Schmidt | Wolfgang Rösch | Wolfgang Loitzl | Wolfgang Kramer | Wolfgang Hutter | Wolfgang Droege | St. Wolfgang im Salzkammergut | Wolfgang Zuckermann |
Many composers have written music especially for him, including Tristan Keuris, Wolfgang Rihm, John Zorn, Gia Kantsjeli, Kevin Volans, George Crumb, György Kurtág and Jacob ter Veldhuis.
The ensemble premiered some 500 works, including compositions by Hèctor Parra, Brice Pauset, Gérard Pesson and Wolfgang Rihm.
World premières he presided over included works by Bussotti, Ferneyhough, Górecki, Ligeti, Rihm, Stockhausen and Xenakis, and he gave the French premières of Hindemith's Symphony Mathis der Maler and Stravinsky's The Rake's Progress and the European premiere of Susman's Trailing Vortices.
More than 250 first performances by more than 70 composers include Edison Denisov's Trio, Nicolaus A. Huber's Demijour, Luca Lombardi's Einklang, Wolfgang Rihm's Kalt, Friedrich Goldmann's Konzert für Posaune und 3 Instrumentalgruppen, Luigi Nono's Kolomb.
More recently, Hamburg gave the world premières of Wolfgang Rihm's The Conquest of Mexico (1992) and Helmut Lachenmann's The Little Match Girl (1997), for which it received much international acclaim.
At the same time, between 1990 and 1998, he regularly attended the Ars musica contemporary music festival composition seminars and workshops, with the participation of Luciano Berio, Witold Lutosławski, György Ligeti, Pierre Boulez, Karlheinz Stockhausen, Brian Ferneyhough, Pascal Dusapin, Iannis Xenakis, Magnus Lindberg, Luca Francesconi and Wolfgang Rihm.
He has conducted the world premieres of works by composers such as Toru Takemitsu, John Casken, James MacMillan and Wolfgang Rihm.
Special Prize: Ex-aequo Kuss Quartet and Pacifica Quartet (best performance of the Quartet commissioned to Wolfgang Rihm)
He has often performed piano works of contemporary composers like Arnold Schönberg, Luciano Berio, György Ligeti, György Kurtág, Wolfgang Rihm, Peter Eötvös, Emmanuel Nunes, Marco Stroppa, James Dillon, Jonathan Harvey, Rudolf Kelterborn.
In 2001, Beville won a DAAD scholarship to study with Wolfgang Rihm at the Musikhochschule Karlsruhe in Germany, where he obtained the Konzertexamen both in Composition and Performance - First Class.
Other contemporary composers who have written works for her include Heinz Holliger, Wolfgang Rihm, Georges Lentz, Bruno Mantovani, Sally Beamish and Josef Tal.