She was educated at Bon Sauveur Convent, Anglesey,[2] and studied vocal music at the British Institute of Florence, which was at the time under the direction of her uncle Francis.
[6] In 1957 she sang the Plaintiff in Trial by Jury, Sacharissa in Princess Ida and Kate in The Yeomen of the Guard,[7] and added Casilda in The Gondoliers the following season.
[13] While with the company she also took part in concert performances ranging from Bach's St John Passion[15] to Gilbert and Sullivan miscellanies with D'Oyly Carte colleagues.
[16] After leaving D'Oyly Carte, Toye appeared on a cruise ship for nine months[2] and on stage in Lock Up Your Daughters in York,[17] on television with Arthur Askey and the Fol-de-Rols,[18] and in pantomime in the title role in Cinderella,[19] and as the Empress in Aladdin.
[2] On recordings made by the D'Oyly Carte Opera Company, Toye performs as Peep-Bo in the 1957 Mikado,[23] as Celia in the 1960 Iolanthe,[24] as Casilda in the 1961 Gondoliers[25] and as Lady Ella in the 1961 Patience.