Guy Simpson has been working as a Conductor, Musical Director and Musical Supervisor for 35 years.

His work on The Phantom of the Opera began in Australia in 1990 and has continued for the past 24 years with productions in Auckland, Cape Town, Pretoria, Johannesburg, Shanghai, Taipei, Hong Kong, Brazil (in Portuguese), Manila, Bangkok, Singapore and Seoul where he produced 2 cast recordings in Korean. Future productions next year include Istanbul and Beijing.

He has had a similar long association with Miss Saigon since the original production – conducting or supervising productions in Australia, Manila, Hong Kong, Singapore, Brazil, Seoul, The Netherlands and Japan.
Other international productions include Cats (Australia, New Zealand), Chicago (Australia, Hong Kong) and We Will Rock You - the QUEEN musical (Australia, Japan)

Recent productions in Australia include Dirty Rotten Scoundrels in Sydney (Musical Director), A Funny Thing Happened on the Way to the Forum starring Geoffrey Rush in Melbourne (Musical Supervisor and Orchestrator) and Love Never Dies - the sequel to The Phantom of the Opera (Musical Supervisor and Musical Director). This production has been filmed and released on DVD by Universal Pictures.

He has conducted 13 productions for The Production Company in Melbourne - Funny Girl, Call me Madam, Mack and Mabel, The Music Man, They’re Playing our Song, Carousel, Oklahoma!, Camelot, Little Me, Follies, Promises Promises, Gypsy and Guys and Dolls.

Other productions in Australia include Les Miserables, Cabaret, My Fair Lady, Company, Into the Woods, Little Shop of Horrors, Best Little Whorehouse in Texas, West Side Story, Pirates of Penzance, Snoopy, Seesaw, Zorba.
Other Musical Direction work has included the UK Pop / Opera group Amici Forever, The Helpmann Awards, The Music of Andrew Lloyd Webber and David Campbell - The Broadway Show.