Gustav Haug

Kim Barbier, Marija Bokor (piano), Burak Çebi, Georgiana Pletea, Marian Rosenfeld, Alexandra Sostmann (piano), Carmen Stefanescu (piano), Tsovinar Suflyan, Sergey Tanin (piano), Wendy Waterman, Viviane Chassot, Michael Dücker, Alexandre Foster, Ursula Sarnthein, Elisabeth Harringer, Nora von Marschall (harp), Judit Polgar, Mélanie Adami (soprano), german hornsound, Daniel Behle (tenor), Alexandre Beuchat (baritone), Adele D'Aronzo, Anna Bonitatibus (mezzo-soprano), Duo Dalùna, Remy Burnens (tenor), Fabienne Romer, Sybille Diethelm (soprano), Ihor Kordiuk, Daniel Di Prinzio (baritone), Holger Falk (baritone), Almut Frenzel, Leonard Schelb, Clara Blessing, Heidi Gröger, Edward Rushton, Kathrin Hottiger (soprano), Benjamin Mead, Franziska Andrea Heinzen (soprano), René Perler (bass-baritone), Justine Eckhaut, Marie-Pierre Roy (soprano), Timothy Hopkins, Vita Kan, Marc Sabbah, Eliane Reyes, TriOlogie String Trio, Renato Wiedemann, Martin Zeller, Giorgio Paronuzzi, Víctor Castillo Luna, Art'Ventus Quintet, Heinz Holliger (oboe), Andrea Bischoff, Marie-Lise Schüpbach, Reeds in Motion, Christoph Dangel, Stefan Preyer, Els Biesemans, Maja Lisac Barroso, Marcelo Nisinman, Trio Eclipse, Trio Eiger, Consort Mirabile, Marta Redaelli (soprano), Alice Boccafogli (soprano), Andrés Montilla-Acurero (tenor), Rui Lopes, Gringolts Quartet (string quartet), Haika Lübcke, Hendrik Heilmann, Henry Moderlak, Joan Boronat Sanz, Hanspeter Oggier, Marina Vasilyeva, Sarah Rumer, Ulrich Koella, Dmitry Smirnov, Lena-Lisa Wüstendörfer, Michael Barenboim (violin), Basler Madigalisten, Ralph Immoos (chorusmaster), Schweizer Vokalconsort, Marco Amherd (chorusmaster), Merzouga Klangkunst, nuovo aspetto, Consort Mitabile, Deutsches Symphonie-Orchester Berlin, Basel Chamber Orchestra, Swiss Orchestra, Basler Madrigalisten, Howard Griffiths, Raphael Immoos

Sybille Diethelm (soprano), Fabienne Romer (piano)

Fabienne Romer, Sybille Diethelm (soprano)