1. Sometimes you may find some pages of your music are not being vertically justified to fill the entire page. The reason for this will be due to a Layout Option, that controls when to justify the music across the height of a music frame. Dorico looks at the amount of music in each frame to see what percentage is filled. It then compares that to a threshold set in Layout Options, and if the filled area is greater than the threshold, Dorico spreads the staves across the whole frame. It is important to have this setting, otherwise you could find that solo instrumental music with two systems would position one stave at the top of the page and the other at the bottom of the page.
  2. Have a look at the pages in your layout that are not justified, and estimate how full these pages are.
  3. Open Layout Options, by selecting the relevant layout in Setup mode and clicking the Layout Options button in the action bar at the bottom of the Layouts panel. You can also use the key command Ctrl (Cmd on Mac)+Shift+L from anywhere in the program.
  4. Select the Vertical Spacing page from the side bar on the left, and navigate to the Vertical Justification options.
  5. The default threshold is set to 60%, meaning that only when the music frame is at least 60% full will Dorico justify the staves and systems across the height of the frame.
  6. Reduce this number to a value appropriate to the estimate you made in Step 2 and press Apply and Close.
  7. Because this is a Layout Option, you can set this threshold independently for each layout if required.