Why three layers?

There are several reasons for this division into layers:

  • Many of the symbols that are in the layout layer can be stretched to span over several staves, or for other reasons make more sense to think of as belonging to a certain group of tracks.

  • The layout layer is only one part of the bigger concept of layouts. Layouts allow you to easily extract parts from a full score and perform automatic formatting.

  • Typically, you want to display some symbols – repeat barlines, endings, score titles, etc. – for all layouts in a score. To achieve this, insert them on the project layer.