Chamber, Duos, Klebe (composer)

Frank Thoenes (double bass), Jens Hoffmann (piano)

Přemysl Vojta (horn), Tobias Koch (piano)

Eckhard Fischer (violin), Christian Köhn (piano)

Carl Seemann (piano, keyboard, musician), Edith Picht-Axenfeld (piano, harpsichord), Ludwig Porth (percussion), Karl Peinkofer (percussion), Bernhard Minetti (speaker), Franz Ortner (doublebass), Annelies Kupper (soprano), Wolfgang Schneiderhan (violin), Andor Foldes (piano), August Eberhard Muller...