Josef Gostic

Opera singer

Josef von Manowarda

Austrian singer

Johannes Chum

Sigi Finkel

Daniza Ilitsch

Hermann Schey

Giuseppe Danise

Opera singer

Fernand Ansseau

Belgian singer

Richard Mayr

Austrian bass-baritone

Karl Elmendorff

German conductor

Carlo Grante

Italian classical pianist

Clemens Salesny

Saxophonist

Olimpia Boronat

Voice coach

Graziella Pareto

Spanish opera singer

Rose Pauly

Hungarian soprano

Florencio Constantino

Spanish opera singer

Giovanni Inghilleri

Musical artist

Ursula Langmayr

Austrian opera singer

Christoph Stradner

Musical artist

Hermann Jadlowker

Latvian tenor

Jacques Urlus

Dutch tenor

Flip Philipp

Musical artist

Rudolf Bockelmann

Heinrich Bockelmann's son

Nanny LarsénTodsen

Swedish soprano

Mark Reizen

Opera singer

Bianca Scacciati

Helly Möslein

Austrian musician

Martin Breinschmid

Austrian drummer

Selma Kurz

Opera singer

Hélène Bouvier

French operatic soprano

jelena popržan wiener tschuschenkapelle

Band

Cesare Formichi

Baritone

Sabine Kalter

Singer

Carla Martinis

Margarete Matzenauer

Mezzo-soprano

Wiener Kammersymphonie

Musical artist

Rupert Gottfried Frieberger

Austrian composer

Pier Damiano Peretti

Organist

Michael Radulescu

German composer

Zsófia Boros

Musical artist

Karin Branzell

Opera singer

ivan gajan slovak sinfonietta

Orchestra

Michaela Selinger Musician

Mezzo-soprano

Maartje Offers

Dutch contralto

Amedeo Bassi

Opera singer

Aldo Bertocci

Opera singer

Marcus Ratka

Austrian musical artist

Jaro Prohaska

Austrian opera singer