Intervals
Hear the distance between two notes.
Hear the distance
An interval is the space between two notes, and it's the smallest unit of ear training. Learn them and melodies stop being guesswork.
The ones that matter
minor 2nd Jaws — dissonant, tense perfect 4th Here Comes the Bride perfect 5th Star Wars, the opening octave Somewhere Over the Rainbow
Why it matters
Every chord and scale is built from intervals. Hear the pieces and you hear the whole thing.