Some conventions require to display a double barline when there is a change of key. The double barlines are used to highlight a change of 'section' in the score. In such cases, the nested repeat markings will only be used the first time, then these sections will only be played once. In this case, the repeated section will start at the first measure of the score.īarline repeats can also be nested. It is allowed to omit the left barline repeat.
The wrapped measures will be played one more time, once the right barline repeat marking has been reached.
The left and right barline repeat symbols are used to wrap the section of the score which has to be repeated. Barline repeats indicate to repeat one or several measures of a score.
