Opera in German such as opera seria. Some Baroque composers, such as Reinhard Keiser, did try to challenge Italian dominance, and the theatre principal Abel Seyler became an eager promoter of German opera in the 1770s, but it was only with the appearance of Mozart that a lasting tradition of serious German-language opera was established. Mozart took the simple, popular genre of "Singspiel" and turned it into something far more sophisticated. Beethoven followed his example with the idealistic "Fidelio"; and with "Der Freischütz" of 1821, Weber established a uniquely German form of opera under the influence of Romanticism. Weber's innovations were eclipsed by
The Royal Opera but none would take the permanent post. It was not until 1954 that Webster found a replacement for Rankl in Rafael Kubelík. Kubelík announced immediately that he was in favour of continuing the policy of singing in the vernacular: "Everything that the composer has written should be understood by the audience; and that is not possible if the opera is sung in a language with which they are not familiar". This provoked a public onslaught by Beecham, who continued to maintain that it was impossible to produce more than a handful of English-speaking opera stars, and that importing singers from