One of the capital’s most wonderful buildings  The Guardian Staff Parish Administor - Nicolette Roberts Nicolette has a career in theatre, in aspects of teaching, stage management and administration. Concerts Programmer - Mark Summerbell Mark Summerbell is a conductor who has worked with nearly  every major musical organisation in Australia, including the  Sydney Symphony Orchestra, Opera Australia and the  Australian Ballet.  A distinguished figure in Australian contemporary music,  Mark was Artistic Director of both The Seymour Group and  Music Theatre Sydney, commissioning and conducting over  85 world and Australian premieres.  Finance & volunteers - Jo Baktis