Music Glossary

Bar (Measure)

A small, equal segment of music containing a set number of beats.

A bar, also called a measure, is a unit that divides music into small, equal groups of beats, making it easier to read, count and organise. How many beats fit in each bar is set by the time signature — most popular music uses four beats per bar, so musicians count '1, 2, 3, 4' and start again at the next bar. In written notation, bars are separated by vertical bar lines. Bars are the basic building blocks of musical structure: loops, phrases and whole song sections are typically measured in bars (a verse might be sixteen bars), which is why producers and musicians constantly count and think in them.

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Written & reviewed by
The Club432 musician collective

432 Academy is the learning arm of Club432 — a performing-arts collective of working musicians, producers, DJs and engineers. Our guides are written for beginners and reviewed by people who play, record and perform for a living, so the advice is what we'd tell a friend picking up the instrument, not specs copied off a box.

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