About Us

At the heart of Mirabilis Collective are its co-founders, Stephanie Nicholls and Tresna Stampalia, whose friendship and creative collaboration date back to their university days. Over the years, their shared journey through orchestras, chamber music ensembles, and Australian touring musical theatre productions led them to the same conclusion—that the music of women had been quietly, persistently left out of the repertoire.

Mirabilis Collective was born from a determination to change that—creating a space where women musicians could collaborate, perform, and champion one another's work. The ensemble brings together established and emerging artists, each contributing unique strengths and perspectives to a vibrant, evolving musical community.

We are building something that lasts: a repertoire, a community, and a generation of musicians who grow up knowing women's music as essential, not exceptional.

We perform. We commission. We mentor emerging musicians and composers. We bring chamber music into schools, regional communities and public spaces.

Through our flagship project, Hear Her Now—Australia's first chamber music festival dedicated entirely to works by women—we are building a significant platform for women's music. And through our education and mentorship programs, we are ensuring that the next generation of WA musicians hear music by women composers.

This is how we make change—through sustained, evidence-informed programs that shift what people know, hear and expect from music.

Join us at Mirabilis Collective as we connect, create, and inspire. Experience the power of women collaborating in music.

Mirabilis Collective Directors

Stephanie Nicholls

Stephanie Nicholls, proud to be a musician on Whadjuk Boodja, has devoted her life to the arts as an oboist, pianist, arranger, and musical director. With significant orchestral experience, she has collaborated with both the West Australian and Perth Symphony Orchestras.

Her commitment and leadership are evident in her work as a syllabus consultant for the Australian Music Examinations Board and her roles as an examiner and adjudicator. As one of Perth's sought-after collaborative pianists and coaches, her expertise spans multiple genres.

A passionate and committed educator, Stephanie has held lecturing and teaching roles at the UWA Conservatorium of Music, WAAPA, and numerous Perth schools. Through her extensive knowledge and guidance, Stephanie has made a lasting impact on countless musicians and students alike.

Tresna Stampalia

Tresna Stampalia is an accomplished flautist and founder of the chamber music ensemble Tres Classique. With a rich background in orchestral playing and musical theatre, she has performed with orchestras around Australia including both the West Australian and Perth Symphony Orchestras. Tresna is passionate about exploring the flute's role in indigenous music and supporting cross-cultural collaborations, actively participating in projects that showcase the instrument's versatility.

Deeply committed to mentoring and nurturing the next generation of musicians, Tresna serves as a sessional lecturer in flute studies at WAAPA, is an experienced AMEB examiner, and adjudicates for various eisteddfods and competitions. Her dedication to education extends to her work with students at all levels, providing guidance and support to help them reach their full potential.