[2] Born to Czech parents in 1973, Keller grew up in Sydney, Australia.
[3] Convinced from a young age that she would be a musician, she studied piano, flute and saxophone at Sydney's Conservatorium High School.
[4] Continuing to explore classical, jazz and original musics throughout her teenage years, her musical path became more defined when she moved to Melbourne in 1993 to attend the Victorian College of the Arts (VCA).
[8] Keller wrote her doctoral thesis at the Sydney Conservatorium of Music about the Estonian composer Arvo Pärt.
[9] In 2017 Keller was awarded the Merlyn Myer Music Commission from the Melbourne Recital Centre.