The goal is to be able to name intervals on the keyboard.
Before the activity begins, use the buttons to reveal intervals. Play a note on the keyboard to set the lower note of the interval 1) the distance between two pitches 2) two notes combine to form an interval.
To determine the interval, count the number of half steps. Intervals are named by a qualifier: Major, minor, Perfect, diminished, Augmented, and a number. Select a qualifier and then press a number button to show the interval on the keyboard.
Scale-tone intervals use only notes in the scale a group of pitches arranged from high to low covering one octave of the key signature.
see also: Interval Naming, Intervals