measure is a segment of the time within a piece of music defined by a given number of beats. Eachmeasure is separated by a bar. within each measure, Beats are represented by a particular note value and the boundaries of the bar are indicated by vertical bar lines. Dividing music into bars provides regular reference points to pin point locations within a piece of music. It also makes written music easier to follow, since each bar of staff symbols can be read and played as a batch
