this vibrant score which has so fascinated the public and performers for more than a century." Meanwhile, Carmens popularity endures; according to Macdonald: "The memorability of Bizet's tunes will keep the music of Carmen alive in perpetuity," and its status as a popular classic is unchallenged by any other French opera. Music Hervé Lacombe, in his survey of 19th-century French opera, contends that Carmen is one of the few works from that large repertory to have stood the test of time. While he places the opera firmly within the long opéra comique tradition, Macdonald considers that it transcends the genre and that its immortality is assured by "the combination in abundance of striking melody, deft harmony and perfectly judged orchestration". Dean sees Bizet's principal achievement in the demonstration of the main actions of the opera in the music, rather than in the dialogue, writing that "Few artists have expressed so vividly the torments inflicted by sexual passions and jealousy." Dean places Bizet's realism in a different category from the verismo of Puccini and others; he likens the composer to Mozart and Verdi in his ability to engage his audiences with the emotions and sufferings of his characters. Bizet, who had never visited Spain, sought out appropriate ethnic material to provide an authentic Spanish flavour to his music. Carmen's habanera is based on an idiomatic song, "El arreglito", by the Spanish composer Sebastián Yradier (1809–65). Bizet had taken this to be a genuine folk melody; when he learned its recent origin he added a note to the vocal score, crediting Yradier. He used a genuine folksong as the source of Carmen's defiant "Coupe-moi, brûle-moi" while other parts of the score, notably the "Seguidilla", utilise the rhythms and instrumentation associated with flamenco music. However, Dean insists that "[t]his is a French, not a Spanish opera"; the "foreign bodies", while they undoubtedly contribute to the unique atmosphere of the opera, form only a small ingredient of the complete music. The prelude to act 1 combines three recurrent themes: the entry of the bullfighters from act 4, the refrain from the Toreador Song from act 2, and the motif that, in two slightly differing forms, represents both Carmen herself and the fate she personifies. This motif, played on clarinet, bassoon, cornet and cellos over tremolo strings, concludes the prelude with an abrupt crescendo. When the curtain rises a light and sunny atmosphere is soon