She has been commissioned by Staatstheater Nürnberg for a new opera Dunkelrot, which will be premiered there on September 29, 2007. In August 2005, part of Dunkelrot was premiered at the Chamber Opera Schloss Rheinsberg, Germany. Also recently commissioned and premiered was the chorus and orchestra work Kohlenmonoxyd.Nachtstück at the IPPNW Congress in Nürnberg. In November 2006, she was commissioned by the Fromm Music Foundation to write a new work for bass clarinet and piano.

She collaborates with orchestras such as the RSO Saarbrücken and the Orchestre National de Lorraine, and with the Nouvel Ensemble Moderne (Montréal), who will release a CD with her work helical in 2007. Other notable collaborators have included the ensembles Arditti Quartett (London), White Rabbit (Boston), North/South Consonance and Alarm Will Sound (New York City), ensemble phorminx (Germany) and KlangKonzepteEnsemble (Germany), and musicians Makiko Goto, Petra Hoffmann, Carin Levine, Michael Norsworthy, Frances-Marie Uitti and Jeremias Schwarzer.

Obermüller was one of three artists featured in the book: "...denn Kunst meint ja immer ein Sich-Preisgeben" by Charlotte Martin. For her compositions, Obermüller has received awards such as the Bavarian Youth Prize for Composition, presented to her by Zubin Mehta, the ASCAP 2004 Morton Gould Young Composer's Award, the Bohemians New York Musicians Club Prize (2005 & 2006) and the Darmstädter Musikpreis 2006. In autumn 2005, she received a stipend for a residency at the Centro tedesco di studi Veneziani in Venice, Italy. Obermüller was awarded scholarships by the Internationale Ferienkurse für Neue Musik Darmstadt (2004 & 2006) and the "Akademie Musiktheater heute" program (2006-2008).

She is currently pursuing her doctorate in the Department of Music at Harvard University, studying with Bernard Rands, Harrison Birtwistle, Chaya Czernowin, Magnus Lindberg and Julian Anderson. She has been teaching music theory there since February 2006.

Article in DaFacto (in German)