Alberto Randegger was an Italian-born composer, conductor and singing teacher, best known for promoting opera and new works of British music in England during the Victorian era and for his widely used textbook on singing technique. His compositions included ballets, masses and other church music, operas and numerous other vocal pieces. He also edited several collections of vocal music.

The Carl Rosa Opera Company was founded in 1873 by Carl Rosa, a German-born musical impresario, and his wife, British operatic soprano Euphrosyne Parepa-Rosa to present opera in English in London and the British provinces. The company premiered many operas in the UK, employing a mix of established opera stars and young singers, reaching new opera audiences with popularly priced tickets. It survived Rosa's death in 1889, and continued to present opera in English on tour until 1960, when it was obliged to close for lack of funds. The company was revived in 1997, presenting mostly lighter operatic works including those by Gilbert and Sullivan. The company "was arguably the most influential opera company ever in the UK".