Pecan Summer is an opera written and composed by the Indigenous Australian singer Deborah Cheetham, who also sang in the premiere season. It was orchestrated by Jessica Wells. It is the first opera written by an indigenous Australian and involving an indigenous cast. It is based on the February 1939 Cummeragunja walk-off, in which Cheetham's grandparents were involved.
The libretto was written by Deborah Cheetham during a short stay in Lucca, Italy. The opera had its official world premiere at the WestSide Performing Arts Centre, Mooroopna, Victoria, on 8 October 2010, where it was presented by the Short Black Opera Company and the Melbourne Chamber Orchestra under David Kram. It had an unofficial preview performance in Melbourne in July 2010.
The timeline of the opera moves from the Dreamtime; to July 2006, on the banks of the Yarra River near Federation Square in Melbourne; to 1939, on the banks of the Dhungala (Murray River) near the Cummeragunja Mission; to several months later in winter 1939; to Shepparton at an unspecified time; to Federation Square on 13 February 2008, the day of Kevin Rudd's apology.