Lesson 7
Triads

Practice Drills
Id Triads
write triads
PDFdrills_L7

Assignments

 

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Summary Table: Lesson 7

interval

Two pitches sounding simultaneously

triad 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.)
chord
symbols

Roman numerals (I, ii, etc.)

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