Settings
BackSession length
How many questions before a session ends. Shorter is easier to actually start.
Note and key names
Used for the staff drill and the circle of fifths. Typed answers accept either system whatever this is set to.
Which intervals
Mugdal and muktan intervals are where the name stops following the tone count — fa to si and si to fa are both three tones, but one is a kvarta and the other a kvinta.
Clefs
Which clefs the staff drill asks about.
Staff difficulty
How far outside the staff the notes go. Wider means more notes to meet, and less repetition.
Building intervals
Place the second note on the staff, or just name it.
Answering the staff drill
Tapping is faster; typing is harder, and better practice.