Three
pitches built in thirds sounding simultaneously
chord
Three
pitches sounding simultaneously
root
Pitch
on which the chord is built
third
First
pitch above the root (either a major or minor third above)
fifth
Second
pitch above the root (a fifth above)
major
triad
Major
third plus perfect fifth above root
minor
triad
Minor
third plus perfect fifth above root
diminished
triad
Minor
third plus diminished fifth above root
augmented
triad
Major
third plus augmented fifth above root
major
key
chords
I,
IV, V are major
ii, iii, vi are minor
is diminished
minor
key
chords
i,
iv, v* are minor
III*, VI, VII* are major
is diminished
(*The quality
of these chords are different when the harmonic form of
the minor scale is used.)
chord
names
Letter
names (C, D, etc.)
Scale-degree names (tonic, supertonic, etc.)
