Chord Formula
Glossary
A chord formula is just a transposition-equivalent representation of a chord type listing intervals above the root. For example R 3 5 for a Major Triad means root, major third, perfect fifth. (R is used for the root instead of 1, in Harmonious.)
In the following table, the chord types of the diatonic scale (first column) are given chord formulas (second column) as follows:
Augmented Triad
R 3
5Major Third, Major Third
Major Triad
R 3 5
Major Third, Minor Third
Minor Triad
R ♭3 5
Minor Third, Major Third
Diminished Triad
R ♭3 ♭5
Minor Third, Minor Third
Major Seventh
R 3 5 7
Major Third, Minor Third, Major Third
Dominant Seventh
R 3 5 ♭7
Major Third, Minor Third, Minor Third
Minor Seventh
R ♭3 5 ♭7
Minor Third, Major Third, Minor Third
Minor Seventh ♭5 (Half-Diminished)
R ♭3 ♭5 ♭7
Minor Third, Minor Third, Major Third
A chord formula is just a transposition-equivalent representation of a chord type listing intervals above the root. For example R 3 5 for a Major Triad means root, major third, perfect fifth. (R is used for the root instead of 1, in Harmonious.)
In the following table, the chord types of the diatonic scale (first column) are given chord formulas (second column) as follows:
Augmented Triad | R 3 | 5Major Third, Major Third |
Major Triad | R 3 5 | Major Third, Minor Third |
Minor Triad | R ♭3 5 | Minor Third, Major Third |
Diminished Triad | R ♭3 ♭5 | Minor Third, Minor Third |
Major Seventh | R 3 5 7 | Major Third, Minor Third, Major Third |
Dominant Seventh | R 3 5 ♭7 | Major Third, Minor Third, Minor Third |
Minor Seventh | R ♭3 5 ♭7 | Minor Third, Major Third, Minor Third |
Minor Seventh ♭5 (Half-Diminished) | R ♭3 ♭5 ♭7 | Minor Third, Minor Third, Major Third |