<p>
By default, Ardour will show helpful <dfn>tooltips</dfn> about
- the purpose and use of each GUI element if you position the pointer
+ the purpose and use of each <abbr title="Graphical User
+ Interface">GUI</abbr> element if you position the pointer
over it and hover there for a short while.
These little pop-up messages can be a good way to discover the
purpose of many aspects of the GUI.