This Introduction provides an account of how Music in Australia has been conceptualised in previous music histories. It shows that music historians have sought to draw boundaries around what Australian music is by emphasizing the milestones of European settlement, and have often struggled to reconcile Indigenous music making and non-Indigenous music into one account of music in Australia. It explores also the history of cultural institutions in Australia that have built the foundations for music in Australia. Stepping back to look at these cultural institutions and the wide ranging music making in the past and present, the introduction summarises the book’s contents across the themes of Continuities, Encounters, Diversities and Institutions.