Work out chord note finder instantly with clear inputs, formula shown and shareable results.
Chords are defined as fixed semitone intervals above the root, so a major triad is 0, 4 and 7 semitones while a minor triad flattens the third to 3. Working in semitone intervals rather than letter names is what makes a chord shape transposable to any root without rethinking the theory.
Chord construction
each note = root note transposed up by the chord's interval in semitones, modulo 12
Frequency
frequency = 440 x 2 ^ (semitones from A4 / 12)
each note = root note transposed up by the chord's interval in semitones, modulo 12. Chords are defined as fixed semitone intervals above the root, so a major triad is 0, 4 and 7 semitones while a minor triad flattens the third to 3.
Working in semitone intervals rather than letter names is what makes a chord shape transposable to any root without rethinking the theory.
Enter root note, chord type. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.