The daughter of jazz pianist Tom Williams, Neille studied music from an early age. After graduating with a Bachelor of Music (Hons) from the Sydney Conservatorium, Neille completed a Masters-level qualification in conducting.
After several years performing around Australia and abroad with such notable musicians as Jon English and Natalie Bassingthwaite, Neille returned to Sydney and then Canberra, where she played with ensembles such as the Canberra Wind Symphony.
During her busy career, Neille has composed and arranged for a variety of ensembles, bands, orchestras and choirs, and in 2021, won both categories of the Australian Women’s Wind Band composition competition. She has also written music for ad campaigns, theatre productions, live art installations as well as short film scores. Neille’s original works have been performed all over the world and have also been featured on ABC radio. She is a proud advocate of diversity in music and hopes that people continue to explore and discover new living composers when they choose their repertoire.