What does anacrusis mean?
Anacrusis refers to the unstressed note or notes — or, in poetry, the unstressed syllables — that come before the first strong beat of a musical phrase or metrical line. In music, it is what performers commonly call a pickup or upbeat: the brief lead-in that propels the listener into the downbeat, as when a singer enters a fraction of a bar early and the full accompaniment lands on the following strong beat. In classical prosody, an anacrusis similarly precedes the regular alternation of stressed and unstressed syllables, slightly shifting where the line's pattern seems to begin. The word derives from the Greek anakrousis, meaning a 'pushing back,' reflecting how the opening beats push against the expected accent. Though largely confined to music theory, musicology, and the study of verse, anacrusis is a precise and useful term for describing one of the most familiar devices in Western music — the momentum-building pickup that makes so many melodies feel as though they arrive exactly on time.
nounOne or more unstressed notes or syllables that precede the first strong beat (downbeat) of a musical phrase or metrical line; also called an upbeat or pickup.
- In music: one or more notes preceding the first full bar or downbeat of a phrase, performed as a pickup leading into the main body.
- In prosody: one or more unstressed syllables at the start of a verse line, before the regular metrical pattern begins.
"The melody begins with a two-note anacrusis before the main theme enters on the downbeat."
"The song opens with a single-beat anacrusis, so the singer enters just before the downbeat."
"Classical Greek trimeter lines often begin with an anacrusis that displaces the expected stress pattern."
The standard plural follows the Greek-style -es ending; it appears mainly in scholarly writing on music and meter.
"Brahms frequently built phrases from short anacruses that blur the sense of where the bar begins."
That little 'one-and-a' before the band comes in on the beat? Composers have been using it since ancient Greek prosody called it the 'pushing back' of the rhythm.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of anacrusis
Anacrusis comes from the Greek anakrousis, literally a 'pushing back' or 'setting in motion again,' formed from ana- ('up, back') plus krouein ('to strike'). The term was adopted into Latin and then into English musical and prosodic terminology, where it has described the preliminary unstressed beats or syllables before a phrase's first downbeat since at least the early modern period of music-theoretical writing. It shares its Greek ana- prefix with words such as analysis, anaphora, and anachronism.
How anacrusis is actually used
A technical term used mainly in music theory, musicology, and classical prosody; rare in everyday conversation. In popular usage musicians more often say 'pickup' or 'upbeat.' The plural 'anacruses' is standard but seldom needed outside scholarly writing.
Easily confused with anacrusis
Anaphora is the rhetorical device of repeating a word or phrase at the beginning of successive clauses, whereas anacrusis is the unstressed note or syllable preceding the first strong beat of a phrase or line.