A freelance director and dramaturge, he studied applied theater studies at the Justus Liebig University in Gießen under, among others, Heiner Goebbels; Rabih Mroué; and Laurent Chétouane, where he received his diploma in 2011 with a thesis work on the body in contemporary music. In 2012 Grammel celebrated the world premiere of his production of »Josefine« at Theater Mönchengladbach; the concept to this piece won the open competition announced by »Fonds experimentelles Musiktheater NRW«. In addition, the piece »the phantom piper of corrieyairrack« from the year 2009, which had already been performed at Kampnagel Hamburg and HAU Berlin, was invited to the Tonlagen Festival in Hellerau in 2012. He had already produced numerous projects during his studies with, among others, Ensemble Modern Frankfurt; Ensemble musikFabrik Köln; and the International Ensemble Modern Academy.

Born in 1979 in Monschau in the Eifel region of Germany, he lives as a freelance composer in Berlin. Genoël von Lilienstern studied composition in Bremen, Berlin, and Den Haag under, among others, Younghi Pagh-Paan; Clarence Barlow; and Hanspeter Kyburz. He attended master classes taught by Georges Aperghis; Douglas Repetto; Brian Eno; and Peter Eötvös, and he received grants from the Ensemble Modern Academy in Frankfurt; Darmstädter Ferienkurse; the Berlin University of the Arts; and Cité Internationale des Arts Paris. He won the Hanns Eisler Award for contemporary music composition and interpretation; the Ring.Award.off in 2008; a special award from Komische Oper Berlin for his opera "Rigolator"; and the Gargonza Arts Award in 2012. In 2013 he was a guest lecturer at the Center for Computer Research in Music and Acoustics (CCRMA) at Stanford University. His works are performed by, among others, Ensemble Intercontemporain; SWR Orchester; and Ensemble Modern.

Elisabeth Tropper, born in 1984 in Graz, studied German and journalism at the University of Graz and the University of Klagenfurt. She worked as a freelancer for the arts and entertainment section of a regional daily newspaper, completed internships in the area of culture (among others, at steirischen herbst 2003), and worked as a trainee in direction and dramaturgy, and as an assistant director and assistant dramaturge at opera houses and theaters. In 2007 she was hired as an assistant dramaturge and freshman dramaturge by Schauspielhaus Graz, where she worked with, among others, Patrick Schlösser; Georg Schmiedleitner; and Bernadette Sonnenbichler. In addition she was responsible for supervising different formats at Spielstätte Ebene 3. In 2007 she took part in the International Exposure of Israeli Theatre in Tel Aviv. She has been working as a freelance dramaturge since August 2009, and she worked most recently at Hebbel am Ufer (»Man braucht keinen Reiseführer für ein Dorf, das man sieht« [»You don't need a travel guide for a village you can see«] by Tim Staffel, directed by Nurkan Erpulat), as well as at Heimathafen Neukölln (»Sisters« by Andreea Clucerescu, directed by Nicole Oder). 

Yassu Yabara is a freelance set and costume designer in Berlin, and she works with different teams on developing works, on experimental music theater concepts, and on opera performances.

 Since she received her diploma in 2011 from the University of the Arts (UdK) in Berlin she has had a multitude of different experiences working with diverse artistic teams on independent productions in Berlin, Switzerland, and at municipal theaters in Germany. She has worked with, among others, Nis-Momme Stockmann at Schauspiel Frankfurt and Stadttheater Heidelberg; Georg Schütky at Oper Leipzig and Staatstheater Mainz; and Julia Lwowski at Sophiensäle, Ballhaus Ost, Galerina Steiner, and Neuköllner Oper.

She recently worked with Beate Baron on »Drei Einakter« (»Three One-acts«) by Bohuslav Martinu at Oper Frankfurt in the Bockenheimer Depot, and she worked with Nele Jahnke and Theater Hora on »Normalität - ein Musical« (»Normality – a musical«) in Zurich at Rote Fabrik.