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Free Online Ear Training
Hear the interval. See its shape. Remember it for good. Most apps make you guess in the dark — here you see what you hear, as geometry on a live circle.
What is ear training?
Most ear training makes you guess. A sound plays, you pick one of four buttons, you get a score. It works, slowly — and it never explains why an interval sounds the way it does.
Here it runs both ways. You see what you hear: every interval has a shape on the circle, every chord is a constellation. And you hear what you sing: the tuner listens through your microphone and shows the note you actually produced, its degree in the key and how many cents you missed by. Guessing from a list is easy. Landing on the note with your own voice is the skill that transfers to an instrument.
Try it now
See what you hear
Two circles, one system. Click a note to see how scales form shapes — and how rotating a shape simply changes the key. Then switch on the microphone and sing: the second circle names what you produced and shows how far off you are, in cents.
What will you train?
A complete system — from single intervals to modal structures, by ear and by eye.
Intervals
Recognize every interval from minor second to major seventh — by ear and by sight. Each interval has a distinct arc on the Scale Circle: see it the moment you hear it.
Chords
Train chord recognition — major, minor, diminished, augmented and beyond. See the chord as a constellation on the circle while you hear it. 200+ chord types.
Scales & Modes
Recognize scales by their shape. Major is a 7-pointed asymmetric star. Pentatonic is a clean 5-pointed shape. Once you see the geometry, you never forget it. 1,247 scales.
Functional Hearing
Understand why chords feel tense or resolved. The Scale Circle shows Tonic, Subdominant and Dominant zones for any scale. Train your ear to feel harmonic function.
Why does seeing the music help?
Music theory has been taught through notation for 300 years. Notation is great for recording music — but it was never designed for understanding it. When C Major and D Major look completely different on a staff, your brain treats them as different objects and tries to memorize each one separately.
On the Scale Circle, transposition is rotation. C Major and D Major are the same star, turned two positions. Your brain sees this spatially, immediately. You stop memorizing and start recognizing the underlying structure.
The same applies to intervals: a major third is always the same arc — warm and stable. A tritone is always the arc exactly opposite the tonic — dramatic and tense. Once you associate sound with shape, recognition becomes effortless.
Ear training — frequently asked questions
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Start training your ear today
Free forever. No card, no signup to start. Open the circle and sing your first note.