[1][2] Wemyss was classically trained, due to her Salvation Army upbringing, but in the 1980s and 1990s performed in post punk and rock bands, playing live gigs in inner Sydney.
Her groups include, Wet Taxis (1986–1988), Kings of the World (1988–1989), Chad's Tree (1989), The Jackson Code (1989–1990), Pressed Meat & The Smallgoods (1990) and The Blackeyed Susans (1991).
[3] For a rock musician she brought an unusual combination of talents - a classically trained voice; playing the trumpet (her signature instrument); the castanets; and more conventionally, the acoustic guitar.
Her talent as a brass player led her to be invited to play with Midnight Oil on tour in the late 1980s.
Her association with Midnight Oil was briefly revived when she was invited to play with them at the opening ceremony of the Sydney Olympics in 2000.