‘Crossover’ music theatre allegory heavy on meaning

Music theatre “The Rabbits” adapted from the book by John Marsden and Shaun Tan, composer Kate Miller-Heidke, libretto by Lally Katz, directed by John Sheedy for Opera Australia and Barking Gecko Theatre, at the Roslyn Packer Theatre, 22 Hickson Road, Walsh Bay, Sydney until January 24. Reviewed by Helen Musa