台北美國學校
Over the past 20 years Leek has worked with ensembles including The Sydney Children's Choir, Ausdance, Gondwana Voices, St Peters Chorale at St. Peters Lutheran College (Brisbane), Glenn Ellyn Children's Choir (USA), The Australian Youth Orchestra, Opera Queensland, Tapiola Children's Choir (Finland), Taipei American School (Taiwan), Leeds Girls' High School (UK) and The (Taiwan).