This group includes objectives that display a staff without an on-screen instrument. Answers are given by pressing buttons located below the staff.
The range of notes included in the drill may be smaller than the range of the staff displayed.
Try out the buttons before beginning the drill to learn about the material included. You will see and hear an interval 1) the distance between two pitches 2) two notes combine to form an interval or chord a group of three or more tones forming a harmony or another element covered by the drill.
To stop the sound, click on the staff.