He is notable for his librettos for Julian Yu's operas Fresh Ghosts (1997) and The Possessed (2003).
[1] Perry received a grant in 2002 from the Australia Council for the writing of The Obsessed.
[2] He wrote the libretto for the operatic version of Helen Garner's novella The Children's Bach.
[3][4] For this work, Perry received the 2007 RE Ross Trust Playwrights' Script Development Award.
[5] He has also adapted Australian children's author Morris Gleitzman's book Second Childhood for the stage.