 Her concert performances included Gilbert and Sullivan, Ivor Novello, Five Sing Broadway, "Mr. Gilbert and Mr. Sullivan" (with Richard Baker), "Here's Yet Another How De Do" with David Steadman, and a series of The Proms evenings with the National Concert Orchestra.She also sang in concerts of opera, operetta and music hall on world cruises for Cunard.Leonard appeared frequently with the Carl Rosa Opera Company and with "Much Loved Productions" in concerts of Gilbert and Sullivan and Rodgers and Hammerstein.