[1] Her teachers included Clive Carey, a visiting lecturer from England, with whom she continued studies at the Royal College of Music in London from 1947 to 1948.
[1] She made her English concert debut at the Royal Albert Hall in Handel's Acis and Galatea in 1948 and that autumn joined Sadler's Wells Opera, appearing regularly there until 1954.
She was admired for the touching sincerity of her acting and the lyrical warmth of her voice, in such roles as Susanna (The Marriage of Figaro), Pamina (The Magic Flute), Marzelline (Fidelio), Micaela (Carmen), Antonia (The Tales of Hoffmann), Marenka (The Bartered Bride), and Blanche in the British premiere of Poulenc's Dialogues of the Carmelites in 1958.
Morison took the leading soprano roles in Sir Malcolm Sargent's 'Glyndebourne' recordings of nine key Gilbert and Sullivan comic operas in the late 1950s and early 1960s where she continued to work with Richard Lewis and Marjorie Thomas.
[2] In 1963, she married the Czech conductor Rafael Kubelík (his first wife, the violinist Ludmila Bertova, had died in 1961), and decided to retire from performing.