bar line: meaning, definition, pronunciation and examples
C1/C2Technical / Formal
Quick answer
What does “bar line” mean?
A vertical line drawn through a musical staff to divide it into measures (bars).
Audio
Pronunciation
Definition
Meaning and Definition
A vertical line drawn through a musical staff to divide it into measures (bars).
The visual demarcation in written music indicating the metrical structure; also used metaphorically to refer to strict boundaries or divisions in non-musical contexts.
Dialectal Variation
British vs American Usage
Differences
No significant difference in meaning. Both use the term identically in musical contexts. 'Bar' and 'measure' are synonyms, but 'bar' is more common in British English, while both are used in American English.
Connotations
Neutral and technical in both varieties.
Frequency
Moderately frequent within musical discourse; extremely rare in general language in both varieties.
Grammar
How to Use “bar line” in a Sentence
The bar line [divides/separates] the measures.A [double/final] bar line [indicates/signals] the end.Place the bar line [after/before] the fourth beat.Vocabulary
Collocations
Usage
Meaning in Context
Business
Not used.
Academic
Used almost exclusively in musicology, theory, and education texts discussing musical notation.
Everyday
Virtually never used unless discussing written music.
Technical
The primary domain. Essential terminology for composers, arrangers, musicians, and music software.
Vocabulary
Synonyms of “bar line”
Neutral
Weak
Vocabulary
Antonyms of “bar line”
Watch out
Common Mistakes When Using “bar line”
- Misspelling as 'barlin' or 'barline' (though 'barline' is sometimes accepted).
- Using it to refer to the bar itself (the measure) rather than the dividing line.
FAQ
Frequently Asked Questions
While 'bar line' (two words) is the most standard form in music publishing, 'barline' is commonly seen and generally accepted, especially in informal and digital contexts.
A 'bar' (or 'measure') is the segment of music between two bar lines, containing a set number of beats. The 'bar line' is the vertical line itself that marks the boundary.
Extremely rarely. It might be used metaphorically in very specialised writing (e.g., poetry analysis) to discuss metrical division, but this is not common.
Yes, it is simply a single vertical line through the staff. A double bar line uses two vertical lines (thin or thin/thick combinations for final bars).
A vertical line drawn through a musical staff to divide it into measures (bars).
Bar line is usually technical / formal in register.
Bar line: in British English it is pronounced /ˈbɑː ˌlaɪn/, and in American English it is pronounced /ˈbɑːr ˌlaɪn/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Imagine a BAR preventing notes from one measure (a BAR of music) from crossing over into the next. The LINE is the gate.
Conceptual Metaphor
BOUNDARIES ARE LINES; SECTIONS ARE CONTAINERS (the bar line defines the container of the measure).
Practice
Quiz
What does a 'double bar line' typically signify?