Start from sharps and flats as well as naturals
Ask by ear: heard before it is seen, and never two intervals that sound alike among the answers (A4 and d5)
Highest note written, as a MIDI number
The intervals asked; the choices are drawn from them too
Lowest note written, as a MIDI number
The two notes one after the other, rather than together
Answer by playing: the lower note is shown and sounded with the interval's
name, and both notes are played from it — one after the other, or together
as melodic says. By ear, the interval is heard and played back
What an interval drill asks.