Having started with the Tyrolian folk harp, Margret Koell studied the concert harp in Innsbruck, Baltimore and then in the class of Prof. Helga Storck's at the Musikhochschule München, from where she graduated as a teacher and performer. After further studies on historical harps with Andrew Lawrence-King and Mara Galassi, she took a degree at the Accademia Internazionale della Musica in Milan. Since 2012 she teaches baroque harp at the Hochschule Hans-Eisler in Berlin.
As principal harpist she has worked with orchestras such as the Munich Symphony Orchestra. Also, she was a member of a contemporary folk band and participated in their worldwide tours. Among others, she has worked with outstanding artists like Meredith Monk, Sainkho Namtchylak and the Kronos Quartett.
As a specialist on the historical harp she plays as a soloist and as a continuo player with various ensembles: Il Giardino Armonico, Accademia Bizantina, Europa Galante, the Balthasar-Neumann-Ensemble, the Akademie für Alte Musik Berlin and Concerto Köln. She has performed at the Salzburger Festspiele, Covent Garden, the Theater an der Wien, the Operá Garnier Paris, the Bayrische Staatsoper and the Teatro alla Scala Milan. Her renowned chamber music partners include lutenist Luca Pianca, violinists Enrico Onofri, Dmitry Sinkovsky and Riccardo Minasi, recorder player Stefan Temmingh, viola da gamba player Vittorio Ghielmi and soprano Roberta Invernizzi.