In 1910 Vincent made her debut in grand opera in Thomas Beecham's seasons at Covent Garden and Drury Lane, singing in Hansel and Gretel (as Hansel), Così fan Tutte (as Fiordiligi), The Tales of Hoffmann (as Antonia), Carmen (as Micaela) and Don Giovanni (as Zerlina).
Vincent's entry into the grand opera scene in 1910 was marked by performances at prominent venues like Covent Garden and Drury Lane, showcasing her talents in iconic operas including Hansel and Gretel, Così fan Tutte, The Tales of Hoffmann, Carmen, and Don Giovanni.