Orchester Der Deutschen Oper Berlin

Prestigious German Opera Orchestra

Ann Murray

Canadian Pop and Country Music Singer

Yvonne Kenny

Australian Soprano

Sergei Leiferkus

Russian Operatic Baritone

Samuel Ramey

Celebrated American Bass-Baritone Opera Singer

Stefanie Hertel

German folk music singer

Chor Der Staatsoper Berlin

German State Opera Choir

Carlo Rizzi

Italian Conductor

Gregor Bühl

German Conductor and Opera Specialist

Boris Berezovsky

Russian Classical Pianist

Christoph von Dohnányi

Renowned German Conductor

Patricia Petibon

French Soprano and Baroque Specialist

Hans Peter Blochwitz

German Tenor and Opera Singer

Dawn Upshaw

Grammy Award-Winning Soprano Vocalist

Felicity Palmer

British operatic mezzo-soprano and soprano

Leopold Hager

Austrian Conductor and Classical Musician

Sylvia McNair

Grammy Award-Winning Soprano

Scot Weir

Jennifer Larmore

American Mezzo-Soprano Opera Singer

Thomas Moser

Jane Eaglen

British dramatic soprano opera singer

Inga Nielsen

Danish Soprano

Vermeer Quartet

Renowned Chamber Music Ensemble

Charlotte Margiono

Dutch Soprano Singer

Wilhelm Kienzl

Austrian Composer and Opera Conductor

Olga Borodina

Russian mezzo-soprano opera singer

London Brass

British Brass Ensemble

Heinz Erhardt

German Comedian and Entertainer

Bettina Wegner

German Singer-Songwriter and Poet

Elisabeth von Magnus

Austrian Mezzo-Soprano and Contralto Singer

Anthony Michaels-Moore

British Baritone Opera Singer

Roberta Alexander

Internationally Acclaimed American Soprano

Vincenzo La Scola

Italian Tenor Vocalist

Wolfgang Meyer

German Clarinetist

Naoko Yoshino

Japanese Harp Virtuoso

Falk Struckmann

German Operatic Bass-Baritone

Eric Burdon Band

British Rock and Blues Group

José Cura

Argentinian Tenor and Conductor

Ofra Haza

Israeli Singer and Queen of Mizrahi Music

Delores Ziegler

American Mezzo-Soprano Opera Singer

Stockholm Bach Choir

Swedish Classical Choral Ensemble

Oliver Widmer

Swiss Baritone Vocalist

Anton Scharinger

Austrian Bass-Baritone Opera Singer

Chor der Oper Zürich

Swiss Opera Choir Ensemble

Florian Silbereisen

German Schlager Music Artist

Red Star Red Army Chorus

Russian Military Choir Ensemble

Laurence Dale

British Operatic Tenor and Director

Deon van der Walt

South African Tenor Opera Singer

Nello Santi

Orchester der Oper Zürich

Swiss Opera House Orchestra

Ignacio de Jerusalem

The Royal Choral Society

Prestigious British Choir Ensemble

Jochen Schroeder

Norbert Balatsch

Austrian Choral Conductor and Opera Choir Director

Haydn-Trio, Wien

Austrian Classical Chamber Ensemble

Heather Jones

Emerging Indie Folk Songstress

Isabel Varell

German singer and actress

Opus

Herbert Tachezi

Austrian Harpsichordist and Organist

Gounod / Rizzi / Wno / Ramey / Mentzer / Agache