Following a childhood in Manchester and later London, Elizabeth studied in Vienna as well as the Royal College of Music before going on to sing internationally. She later met Richard Lewis at Glyndebourne and, in 1963, they married and had a son, Nigel, in 1967.
She went on to sing in the UK and USA as a mezzo soprano including at the Boston Opera and with the Washington Symphony and Chicago Symphony orchestras. In Europe and the UK she sang in Ghent, Belgium; Wexford; Paris and at the Three Choirs Festival. Elizabeth also sang in several concerts for the BBC.
Later in life she founded the Eastbourne Choral Society directing it for ten years and building it into one of the most adventurous musical organisations in Sussex.
In her last two years as director she presented Mendelssohn's Elijah in dramatised form, and later, Bach's St. Matthew Passion also dramatised, to great acclaim, using international soloists, a London orchestra, and combining her choir with the, then, Ditchling Choral Society.
She runs a speaking agency for lunch and dinner clubs The Easy Speak Lecture Agency.
In 1993 she founded the Eastbourne Camerata - a musical organisation that presents top musicians in concert.
Following the death of Richard in 1990 she met Terry Pridmore and the two married in 1997. Elizabeth's father was Fyfe Robertson, the well-known writer and television reporter. Her sister is photo journalist Grace Robertson OBE who is married to the late Godfrey Thurston Hopkins, also a well-known photographer.