Ear training · Developing

Recognize intervals by ear

Hear and measure the distance between two pitches.

• Minor 2nd = 1 semitone · major 2nd = 2
• Minor 3rd = 3 · major 3rd = 4 · perfect 4th = 5
• Perfect 5th = 7 · octave = 12 semitones

Example: C to E is a major third: C–C♯–D–D♯–E spans four semitones. Letter names determine the interval number; semitones help determine quality.