Andrea studied composition at Rhodes University under Pieter Louis van Dijk (classical composition) and John Edwards (jazz orchestration). She has composed music for solo euphonium, brass band, brass ensemble and orchestra. These works have been performed in the USA, the UK, Singapore, Germany, Norway and South Africa.

She is one of the founding members of The Phax Trio which was dedicated to presenting new contemporary styles of music in South Africa. She has also been involved in projects including Proboscis, the Baobab Trio, and 09 , where she composed and arranged music for the various performances. 

In recent years, her proposal grant for 12 duets for brass instruments was accepted by the Kulturstiftung des Freistaats Thüringen, Germany. African sky for solo euphonium and piano, commissioned by Aaron Campbell, had been selected for the student division in the prestigious Leonard Falcone competition in 2024, for the Australian National Brass Band championship open solos division 2025, as well as being selected for the LRSM examination pieces through the Associated Board of Royal School of music. 

In 2025 two compositions were commissioned and premiered at the RNCM International Brass Band Festival. The two pieces included works for solo flugelhorn and brass band, and the premiere of a six part concert opener for Saxhorn ensemble, commissioned by Anabel Voigt. Additionally Inspired by Blue, commissioned by Bente Illevold, was chosen for the Adult division of the Leonard Falcone competition.

Silver-backed Fox, commissioned by Jennifer Oliverio, has been selected by the  Brass Band Association of New Zealand for the Solo Championship Flugelhorn set piece in 2026.

Sheet music can be found under the shop tab on this website including recordings of the pieces. Euphonium and Tuba music can also be purchased at Pinnacle Brass Publications.