Bar

In musical notation, a bar (or measure) is a segment of time defined as a given number of beats of a given duration. The word measure is heard more frequently in the U.S., while bar is used in other English-speaking countries, although musicians generally understand both usages. The word bar derives from the vertical lines which separate one measure from another, and not the bar-like (i.e., rectangular) dimensions of a typical measure of music. A... more

In musical notation, a bar (or measure) is a segment of time defined as a given number of beats of a given duration. The word measure is heard more frequently in the U.S., while bar is used in other English-speaking countries, although musicians generally understand both usages. The word bar derives from the vertical lines which separate one measure from another, and not the bar-like (i.e., rectangular) dimensions of a typical measure of music. A bar line is a vertical line which separates measures. A double barline can consist of two single barlines drawn close together, separating two sections within a piece, or a barline followed by a thicker barline, indicating the end of a piece or movement. A repeat barline looks like the second type of double barline but it has two dots, one above the other, indicating that the section of music that is before is to be repeated. The beginning of the repeated passage can be marked by a begin-repeat barline; if this is absent the repeat is... less