- How to do it: when there are two voices on a staff, you can delete one of them. Select the Voice you want to delete (click the space of a measure in the Score, then either of the 1 or 2 callout buttons in the floating toolbar) then click the Delete element in the Toolbar. Or right-click the already selected area, and choose Delete element from the contextual menu;
- when you select, make sure that the Editor header reads Voice;
- there is an intricate mechanism in place that enforces at least one Voice on every staff of every Part. See Voices to learn about it.