In February 1868, Pyotr Ilyich Tchaikovsky's first symphony, Symphony No. 1 "Winter Daydreams," was performed in full for the first time. He also composed his first opera, The Voyevoda, in 1868.
A German Requiem (Ein deutsches Requiem), Op. 45, was composed by Johannes Brahms over a number of years, and premiered in February 1868 at Bremen Cathedral. It was this work that brought him to notoriety.
Richard Wagner, known most popularly for his Ring Cycle, premiered his only comedic opera, Die Meistersinger von Nürnberg, in Munich on June 21, 1868.
The Gaiety Theatre, home of the London "Gaiety Girls," reopened in 1868 after renovations and a rebranding. The theater was influential in the development of musical theater.
The exact place and date of Scott Joplin's birth are unknown, but he was probably born in late 1867 or early 1868. Joplin is best known for his ragtime music, but he also composed an opera, classical music, and other popular music.