⌂ Multi-measure rest markup
Markups attached to a multi-measure rest will be
centered above or below it. Long markups attached to multi-measure
rests do not cause the measure to expand. To expand a multi-measure
rest to fit the markup, use an empty chord with an attached markup
before the multi-measure rest.
Text attached to an empty chord in this way is left-aligned to the
position where the note would be placed in the measure; however
since in that case the length of the text determines the measure
length itself, the text will appear to be centered.