In which country did Zarzuela, a theatrical play that contains musical acts, originate?

Zarzuela, form of Spanish or Spanish-derived musical theatre in which the dramatic action is carried through an alternating combination of song and speech.

Most zarzuelas incorporate vocal ensemble numbers (such as trios and duets), lyrical solo songs known as 'romanzas', various types of local folk musics, and dance.

The use of music in stage plays had become a standard practice in Spain by the late 15th century, and that practice laid the foundation for the emergence of various forms of Spanish musical theatre. During the early to mid-17th century the arts found favour among the Spanish nobility.

There are two main forms of zarzuela: Baroque zarzuela (c. 1630–1750), the earliest style, and Romantic zarzuela (c. 1850–1950).