Bar Line

/bɑːr laɪn/bar line
Notation & Score MarkingsEnglish
Also written as: measure line

Definition. A vertical line through the staff, marking the division between measures.

Detailed Explanation

The bar line (or barline) is a vertical line drawn through the staff, marking the division between one measure and the next. It is one of the most basic notational elements, organizing the music into rhythmic units (measures or bars).

Bar lines have evolved over centuries. Early Renaissance music had no bar lines; the bar line became a standard notational device during the 17th century as music became more rhythmically structured. By the 18th century, bar lines were essentially universal in Western art music notation.

Variations exist. The single bar line marks routine measure divisions. The double bar line marks the end of a section. The final bar line (heavier, often double) marks the end of the piece. Repeat bar lines (with dots) mark sections to be repeated.

Etymology

English, descriptive — a ‘bar’ at the end of a measure.

In Practice

Bar lines mark rhythmic divisions but should not interrupt phrasing. Many phrases cross bar lines; play through the bar line as if it weren’t there, except for the slight rhythmic emphasis on the downbeat.

Notable Examples

  • All composers — Universal usage  (fundamental notation element)

Related Terms

Frequently Asked Questions

Bar Line nghĩa là gì trong âm nhạc?

A vertical line through the staff, marking the division between measures.

Từ Bar Line bắt nguồn từ đâu?

English, descriptive — a ‘bar’ at the end of a measure.

Bar Line được thể hiện thế nào trong thực tế?

Bar lines mark rhythmic divisions but should not interrupt phrasing. Many phrases cross bar lines; play through the bar line as if it weren’t there, except for the slight rhythmic emphasis on the downbeat.

Bar Line thường được viết tắt ra sao?

Bar Line thường được viết tắt là measure line.

Những thuật ngữ âm nhạc nào liên quan đến Bar Line?

Thuật ngữ liên quan: Double Bar, Time Signature, Downbeat.

Practice with Songtive's free tools

Hear this term applied — explore chord charts, fingerings and the music engine.

Piano chordsGuitar chordsVirtual piano