Every melody is built from intervals; every chord from stacked thirds. Hear them, learn the song that lives inside each one, see how to play it on your instrument — then test your ear.
root note
The twelve intervals
Hear each one melodically (one after the other) or as harmony (together). The song is your memory hook.
Minor 2nd m2the “Jaws” themeopen → 1+2+3
Major 2nd M2“Happy Birthday” (first step)open → 1+3
Minor 3rd m3“Greensleeves” / “Smoke on the Water”open → 2+3
Major 3rd M3“When the Saints” (Oh, when…)open → 1+2
Perfect 4th P4“Here Comes the Bride” / “Amazing Grace”open → 1
Tritone TT“The Simpsons” (The Simp-…)open → 2
Perfect 5th P5“Twinkle, Twinkle” / “Star Wars”open → open
Minor 6th m6“The Entertainer” themeopen → 2+3
Major 6th M6“My Bonnie” / the NBC chimesopen → 1+2