Online Ear Trainer

What Is an Online Ear Trainer?

An ear trainer is a listening exercise that plays two or more notes and asks you to identify what you heard — an interval, a chord quality, a scale degree. Tunerium’s ear trainer generates every note live in your browser using the Web Audio API, a free, built‑in technology supported by every modern browser, so there’s nothing to install and nothing to pay for. Press play, make your guess, and get instant feedback with your score and streak tracked automatically.

Why Ear Training Matters for Musicians

Reading notation tells you what to play; ear training tells you what you’re actually hearing — and that skill is what lets you transcribe a riff by ear, sing harmony parts, catch a wrong note before anyone else does, or improvise over a chord change with confidence. It’s also what separates playing a piece from truly understanding the music underneath it. Unlike raw technique, ear training compounds: every interval you can instantly recognize becomes a building block for hearing bigger structures like chords, progressions, and whole melodies.

How to Use This Tool

1. Pick a mode. Start with Intervals — two notes played one after another — before moving to Chords, which asks you to hear three notes at once.
2. Choose a difficulty. Easy covers five common intervals; Medium adds seconds and sixths; All includes the full chromatic set, tritone included.
3. Press “Play Sound” and listen carefully. Use “Play Sound” again any time to replay without penalty.
4. Pick your answer from the grid. Right or wrong, you’ll immediately see the correct answer highlighted.
5. Hit “Next” for a new question, and watch your streak and accuracy build across the session.

Understanding Musical Intervals

An interval is simply the distance between two pitches, measured in semitones. Every interval has a distinct “flavor” once you’ve heard it enough times — many people find it easier to learn by linking each interval to a familiar song’s opening notes:

Understanding Chord Qualities

A triad — the simplest chord — is built from a root, a third, and a fifth, and its “quality” comes from the size of those thirds. A major chord (major third + minor third stacked) sounds bright and resolved. A minor chord (minor third + major third) sounds darker and more introspective. A diminished chord (two minor thirds) sounds tense and unstable, wanting to resolve. An augmented chord (two major thirds) sounds unsettled in a stretched, dreamlike way. Learning to sort chords into these four buckets by ear is one of the fastest ways to start hearing harmony rather than just notes.

Tips for Effective Ear Training Practice

• Practice little and often. Ten focused minutes a day builds recognition faster than one long session a week.
• Trust your first instinct. Overthinking an answer usually makes it worse, not better — ear training is about pattern recognition, not calculation.
• Sing it back. If you can hum an interval before naming it, you’re building a much deeper, more durable connection to the sound.
• Increase difficulty gradually. Master the Easy set before moving to Medium and All — a shaky foundation makes everything above it harder to hear clearly.
• Apply it away from the tool. Try naming intervals in songs you already know; real music is the real test.

Frequently Asked Questions