Symphony No. 3 (Beethoven) which the bass theme is heard as the first variation before the main theme ultimately appears. This again parallels the structure of the Opus 35 variations themselves. Finally, the loud E chord that begins the Opus 35 variations themselves is moved here to the beginning of the first movement, in the form of the two chords that introduce the first movement. Alternatively, the first movement's resemblance to the overture to the comic opera "Bastien und Bastienne" (1768), composed by twelve-year-old W. A. Mozart, has been noted. It was unlikely that Beethoven knew of that unpublished composition. A possible explanation is
Comic opera 18th century. In the 19th century, Russian comic opera was further developed by Alexey Verstovsky who composed more 30 opera-vaudevilles and 6 grand operas (most of them with spoken dialogue). Later, Modest Mussorgsky worked on two comic operas, "The Fair at Sorochyntsi" and "Zhenitba" ("The Marriage"), which he left unfinished (they were completed only in the 20th century). Pyotr Tchaikovsky wrote a comic opera, "Cherevichki" (after Nikolai Gogol, 1885, 1887 Moscow). Nikolai Rimsky-Korsakov composed "May Night" 1878–1879 and "The Golden Cockerel" 1906–1907. In the 20th century, the best examples of comic opera by Russian composers were Igor Stravinsky's "Mavra" (1922)