 She continued to play or share these principal soprano roles and sometimes the two smaller ones, finally adding to her repertoire the part of Casilda in "The Gondoliers" in 1925.She played Yum-Yum in the company's four-minute silent promotional film of "The Mikado" in 1926.When "The Mikado" became the first Gilbert and Sullivan opera to be broadcast by the BBC later that year, Griffin reprised her role as Yum-Yum.