The choreographer is usually used for the author in dance performances.
In-text Citation
Murphy's (2008) production of ....
Reference List
Murphy, G. 2008, Swan Lake, [dance performance], Australian Ballet Company, Melbourne Concert Hall, viewed 28 May 2008.
For live theatre, the director is used as the author.
In-text Citation
Geoffrey Rush's performance (Armfield 2009) is...
Reference List
Armfield, N. 2009, Exit the King, [theatrical performance], Sydney Theatre Company, Sydney Theatre, viewed 24 July 2009.