Tacet is
Latin
Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...
which translates literally into English as "(it) is silent" (pronounced: , , or ).
It is a musical term to indicate that an instrument or voice does not sound, also known as a
rest
REST (Representational State Transfer) is a software architectural style that was created to describe the design and guide the development of the architecture for the World Wide Web. REST defines a set of constraints for how the architecture of ...
. In vocal polyphony and in orchestral scores, it usually indicates a long period of time, typically an entire
movement. In more modern music such as
jazz
Jazz is a music genre that originated in the African-American communities of New Orleans, Louisiana, in the late 19th and early 20th centuries. Its roots are in blues, ragtime, European harmony, African rhythmic rituals, spirituals, h ...
, tacet tends to mark considerably shorter breaks. Multirests, or multiple-measure rests, are rests which last multiple
measures (or multiple rests, each of which lasts an entire measure).

It was common for early
symphonies to leave out the
brass
Brass is an alloy of copper and zinc, in proportions which can be varied to achieve different colours and mechanical, electrical, acoustic and chemical properties, but copper typically has the larger proportion, generally copper and zinc. I ...
or
percussion
A percussion instrument is a musical instrument that is sounded by being struck or scraped by a percussion mallet, beater including attached or enclosed beaters or Rattle (percussion beater), rattles struck, scraped or rubbed by hand or ...
in certain movements, especially in slow (second) movements, and this is the instruction given in the parts for the player to wait until the end of the movement.

It is also commonly used in
accompaniment
Accompaniment is the musical part which provides the rhythmic and/or harmonic support for the melody or main themes of a song or instrumental piece. There are many different styles and types of accompaniment in different genres and styles of m ...
music to indicate that the instrument does not play on a certain run through a portion of the music, e.g. "Tacet 1st time." The phrase ''tacet al fine'' is used to indicate that the performer should remain silent for the remainder of the piece (or portion thereof), and need not, for example, count rests.
Tacet may be appropriate when a particular instrument/voice/section, "is to rest for an entire section, movement, or composition." "Partial rests, of course, in every case must be written in. Even though it means 'silent,' the term ''tacet''...is not a wise substitution for a lengthy rest within a movement...The term ''tacet'', therefore, should be used ''only'' to indicate that a player rests throughout an .
"N.C." ("no chord"
[Bissell, Patricia Melcher (2017). ''Classroom Keyboard: Play and Create Melodies with Chords'', p. 41. Rowman & Littlefield. .]) is often used in
guitar tablature or
chord chart
A chord chart (or chart) is a form of musical notation that describes the basic harmonic and rhythmic information for a song or tune. It is the most common form of notation used by professional session musicians playing jazz or popular music. It ...
s to indicate tacets, rests, or
caesura
300px, An example of a caesura in modern western music notation
A caesura (, . caesuras or caesurae; Latin for "cutting"), also written cæsura and cesura, is a metrical pause or break in a verse where one phrase ends and another phrase beg ...
s in the accompaniment.
Uses of tacet
The earliest known usage of the term is 1724.
A unique usage of this term is in
John Cage's 1952 composition
4′33″
''4′33″'' is a Modernism (music), modernist composition by American experimental music, experimental composer John Cage. It was composed in 1952 for any instrument or combination of instruments; the score instructs performers not to play t ...
. Tacet is indicated for all three movements, for all instruments. The piece's first performance lasted a total of 4 minutes and 33 seconds, without a note being played.
See also
*
Latin influence in English
Although English is a Germanic language, it has significant Latin influences. Its grammar and core vocabulary are inherited from Proto-Germanic, but a significant portion of the English vocabulary comes from Romance and Latinate sources. A po ...
References
{{Musical notation
Musical notation
Musical terminology
Latin words and phrases