Ruby has played with artists such as Yo-Yo Ma, Whirimako Black, Trinity Roots and The New Zealand String Quartet as both a cellist, and a player of traditional Māori instruments (ngā taonga puoro). She has also worked as a session musician and recording artist with groups such as So Laid Back Country China, Jhan Lindsay, Strowlini Orchestra, and many other artists around Wellington. In 2019 she completed a masters thesis in the therapeutic potential of taonga puoro in mental health based music therapy, while working in schools, hospitals, prisons and with private clients from iwi around the motu.

She is an experienced composer with pieces commissioned by the New Zealand School of Music in association with SOUNZ, as well as in film work in association with Someday Stories, and the Goethe Institute with Wellington Film Society.