As a chamber musician and soloist, she has performed in major European concert halls, such the Berlin Philharmonie, the Alte Oper Frankfurt, Cologne Philharmonie, Gasteig Munich, the Barbican London, and the Tonhalle, Zuerich with, amongst others, Heinz Holliger, Christoph Poppen, Eduard Brunner, Gustav Rivinius, Menahem Pressler, Nobuko Imai, Erick Friedman, Luba Edlina, Clio Gould, Hansjoerg Schellenberger, Michael Endres and others.Her discography includes releases on Naxos, Stradivarius, EMI Germany, Atoll, and Rattle records.
Edith is a highly successful teacher, with many of her former students now having careers in professional orchestras or as chamber musicians. From 2001 - 2012 she was Director of Performance and Senior Lecturer at the University of Canterbury (NZ), and in 2013 she accepted a Senior lecturer position at the University of Auckland. Since 2019 she teaches at the University of Melbourne. She is in demand for masterclasses and regularly teaches in Korea, China, Thailand, Vietnam, Australia, New Zealand, Canada, Italy, Germany, Poland, and Switzerland.
In 2005, she founded the Pettman National Junior Academy, a privately sponsored scholarship program for highly talented young musicians. To date, this program has been going from strength to strength, with multiple international prize winners coming out of its ranks. Edith is the artistic director of the International Akaroa Music Festival, a chamber music and masterclass festival in Akaroa, NZ, and the Director of the Pettman Open Chamber music Program, a concert career-development program for young musicians. She regularly tours with the Pettman Ensemble, the Jade String Quartet, and the Dorrit Ensemble.
In 2021, Edith took on the Program Coordinator position for the newly founded Melbourne Conservatorium Young Artists Academy.