If you want to delete a measure in MuseScore, there are a few different ways to go about it. The first way is to use the Edit menu and select Delete Measure. The second way is to use the keyboard shortcut Ctrl+K (or Cmd+K on a Mac). The third way is to use the context menu that appears when you right-click on a measure. The fourth way is to use the keyboard shortcut Alt+Delete (or Option+Delete on a Mac). ..