Harmonic interval

This exercise is one of the exercises you can use to practise intervals. The concept is pretty simple: You press the ''New interval'' button to play a random interval, and then you should tell what interval it was.

Key bindings

Minor second: 1 Perfect fourth: 2 Major sixth: 3 Minor ninth: 4
Major second: q Diminished fifth: w Minor seventh: e Major ninth: r
Minor third: a Perfect fifth: s Major seventh: d Minor decim: f
Major third: z Minor sixth: x Perfect octave: c Major decim: v