🎸 Chord Calculator
Show intervals and notes for major, minor, 7th, diminished, and augmented chords from any root note.
Understanding Chord Construction
Chords are built by stacking intervals above a root note. A major chord uses a root, major 3rd (4 semitones), and perfect 5th (7 semitones). A minor chord flattens the 3rd to a minor 3rd (3 semitones).
Seventh chords add a fourth note. Diminished chords use a minor 3rd and tritone, while augmented chords use a major 3rd and minor 6th (augmented 5th).
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