Professor Barrett is a leading figure in Australian and international music education. She is currently professor and Head of the Sir Zelman Cowen School of Music and Performance at Monash University. Among her many achievements Professor Barrett was awarded a Fulbright Senior Research Fellowship in 2018 to undertake preliminary investigations of children’s singing and song-making in the archives of the Smithsonian Institute, and the Library of Congress (Washington DC) and was elected Beaufort Visiting Research Fellow at St John’s College University of Cambridge in 2019. She has held a research residency funded by the Foundation de Maison des Sciences de l’Homme at IRCAM (Institute for Research and Coordination in Acoustics /Musique) investigating creative pedagogy and transmission practices (2019). She was awarded the Fellowship of the Australian Society for Music Education in 2011. Professor Barrett has held nine ARC grants, seven as lead Chief Investigator, in addition to numerous other funded research projects. She is currently Founding Director of the Pedagogies of Creativity, Collaboration, Expertise and Enterprise (PoCCEE) research focus at Monash.

Professor Barrett holds positions as a Director of the Australian Music Centre, the Queensland Symphony Orchestra, and the Queensland Music Festival. She has served as President of the International Society for Music Education (2012-2014), Chair of the World Alliance for Arts Education (2013-2015), Chair of the Asia-Pacific Symposium for Music Education Research (2009-2011), board member of the International Society for Music Education (2008-2010), and National President of the Australian Society for Music Education (1999-2001).

In addition, Professor Barrett has been an advisor for arts and educational bodies nationally and internationally, including the Australia Council for the Arts, the Australian Curriculum and Assessment Reporting Authority, and the United Kingdom Qualifications and Curriculum Authority. Her research encompasses the investigation of the role of Music and the Arts in human cognition and social and cultural development. Her research has addressed problems in the areas of aesthetic decision-making, the meaning and value of Arts engagement for young people, young children's musical thinking, young children's identity work in and through music, teaching and learning practices in the arts, and the pedagogy and practices of creativity. A key aspect of her work has been the development of innovative arts-based inquiry and expertise in music and music education.