Chord ear training is the practice of learning to identify different types of chords by ear — recognizing their unique sound and emotional quality without seeing the notes. It’s a vital skill for musicians that improves improvisation, transcription, and composition.

Major chords sound bright, happy, and stable. Minor chords have a sadder, more melancholic feel. Focus on the third: in a major chord the interval is a major third (4 semitones), while in a minor chord it’s a minor third (3 semitones). Your ear can learn to recognize this difference.

A diminished chord consists of a root, a minor third, and a diminished fifth (6 semitones from the root). It sounds tense, unstable, and eerie. Often used to create suspense, it wants to resolve to a more stable chord.

An augmented chord is built with a root, a major third, and an augmented fifth (8 semitones). It has a dreamy, floating, or unresolved sound. Often used in jazz and cinematic music, it creates a sense of mystery or wonder.

Start by focusing on just two types (e.g., major and minor). Listen to each chord repeatedly, and try to sing the notes. Use this tool daily for short sessions. Gradually add diminished and augmented chords as you improve. Pay attention to the emotional color of each chord — that’s often the easiest cue.

This trainer randomly selects a root note from the range C3 (MIDI 48) to B4 (MIDI 71), giving a variety of pitches. The same chord type can sound different depending on the root, training your ear to focus on the interval structure rather than absolute pitch.

Yes! The interface is fully responsive and works on smartphones and tablets. Just tap the buttons — the audio synthesis runs directly in your browser. Ensure your device’s volume is on.