What does terzetto mean?
A terzetto is a composition or passage written for three voices or instruments, usually with a distinct part for each performer. It is especially associated with vocal music, where three singers may weave separate melodic lines into a balanced ensemble. The word can also refer more broadly to an instrumental three-part piece, though “trio” is often more natural in that context. Terzettos occur in operas, oratorios, masses, chamber music, and choral repertoire, where they can provide contrast to solo passages or fuller ensemble writing. Unlike a casual reference to any group of three, the musical sense emphasizes the structure of the composition and the interaction of its parts. Knowing the term helps listeners describe a particular texture or scoring more precisely, especially when distinguishing a genuine three-part passage from a section performed by a larger group.
nounA musical composition or passage for three voices or instruments, typically with each performer taking an independent part. The term is especially common in vocal music.
- A musical composition or passage for three voices or instruments, typically with an independent part for each performer.
"The composers opened the work with a lively terzetto for three singers."
"The aria was followed by an intricate terzetto for three voices."
"The quartet's encore expanded into a playful terzetto on the stage."
The standard plural is terzettos.
"The program included two terzettos by the same composer."
Terzetto takes its name from the Italian word for “third,” but its music sounds like three voices becoming one.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does terzetto come from?
Terzetto was borrowed from Italian terzetto, a diminutive form of terzo, meaning “third.” Italian terzo ultimately comes from Latin tertius, also meaning “third.” The English musical term developed in the early nineteenth century, alongside the expanding use of Italian terminology in European classical music.
Related word forms
How terzetto is actually used
Terzetto is a specialized musical term, used chiefly in discussions of vocal and instrumental compositions. It is less common than the general word “trio” and is especially associated with three-part writing in which each part has musical independence.
Easily confused with terzetto
A terzetto specifically names a composition or passage for three performers; a trio can also mean any group of three people or things.