How to Learn Intervals by Ear (with Song References)
Intervals are the building blocks of playing by ear. Here's a song for every interval, a practice routine that works, and how to move beyond the songs.
An interval is the distance between two notes. Learn to recognise intervals and you can work out melodies by ear, hear what a bass line is doing, and sing a harmony without sheet music. It's one of the most useful skills in relative pitch, and it's very learnable.
Start with songs you already know
The classic trick is to link each interval to the first two notes of a familiar song. When you hear an interval, you check it against the songs in your head.
| Interval | Semitones | Rising reference |
|---|---|---|
| Minor 2nd | 1 | Jaws theme |
| Major 2nd | 2 | Happy Birthday |
| Minor 3rd | 3 | Greensleeves |
| Major 3rd | 4 | When the Saints Go Marching In |
| Perfect 4th | 5 | Here Comes the Bride |
| Tritone | 6 | The Simpsons theme |
| Perfect 5th | 7 | Twinkle Twinkle Little Star (the jump on "twinkle") |
| Major 6th | 9 | My Bonnie Lies over the Ocean |
| Minor 7th | 10 | Somewhere (West Side Story) |
| Octave | 12 | Somewhere over the Rainbow |
Choose songs you genuinely know well. If one of these means nothing to you, swap it for one that does: the reference has to come to mind instantly.
Then move beyond the songs
Songs are training wheels. Over time, try to recognise each interval by its own character:
- Seconds sound like steps; a minor second is tense and close.
- Thirds carry the colour of chords: major is bright, minor is shaded.
- Fourths and fifths sound open and strong.
- The tritone sounds unresolved, like it wants to go somewhere.
- Sixths are sweet and wide; sevenths are tense and reaching.
A practice routine that works
- Start small. Begin with three or four intervals that sound very different, like a major 2nd, perfect 5th and octave, before adding more.
- Rising first. Rising intervals are easiest. Add falling and harmonic (played together) intervals later; each sounds different and needs its own practice.
- Sing before you answer. Hum both notes back. Producing the interval locks it in faster than listening alone.
- Short daily sessions. Ten minutes a day on the interval ear training tool beats an hour once a week.
- Listen to your mistakes. When you miss one, replay it and compare it with what you guessed.
Where intervals lead
Once intervals feel familiar, chord ear training is the natural next step, since chords are stacks of intervals. From there, scale degrees (hearing each note's role in a key) are what really unlock playing by ear, and that's what the first stages of the Perfect Pitch Lab course are built on.