She was born in Adelaide,[1] and trained with June Loney[2] at the Sydney Conservatorium of Music.
[1] There she studied with Alice Chalifoux of the Cleveland Orchestra, and also with Lydia Shaxson and Judith Liber.
[2] After touring and living overseas (mainly in Germany) for some years, Giles and her husband, the Israeli pianist Arnan Wiesel, returned to Australia permanently in 1998.
[4] She now teaches at the Sydney Conservatorium and the Australian National Academy of Music in Melbourne.
[3] Giles performs in master classes internationally, and has been a juror at numerous important harp competitions.