This is yet another chord exercise.
On the top the the config page there is a frame labeled
Lesson file, that selects what lessonfile to use.
This frame is the same on all exercises that use lessonfiles. There
are two combo boxes. The one on the let you select what collection of
lession files to use. The collection 'solfege' contains the files
distributed with the program. The 'user' collection is files created
by you, by default located in $HOME/lesson-files
.
It is possible to define other collections by editing
$HOME/.solfegerc
.