Diatonic Chords Major and minor Keys

Putting a face to a name Now that we know the types of triads and seventh chords, how do we use them in tonal music? Diatonic Chords: chords that are made using notes that are in the key Chromatic/Altered Chords: All other chords that are using notes not in the key To be able to distinguish between the triads built on the various scale degrees from the scale degrees themselves, we use roman numerals instead of Arabic numerals (V instead of 5) Triad TypeRoman NumeralExample MajorUppercaseV MinorLowercasevi DiminishedLowercase w/ a ◦ vii ◦ AugmentedUppercase w/ a + III+

Diatonic Triads in Major MajorI, IV and V Minorii, iii and vi Diminishedvii ◦ AugmentedNone MEMORIZE THIS!!

Diatonic Triads in Minor Remember!! There are 3 forms of minor scales and there are a few rules to think about! Generalizations: 6 and 7 scale degree are variable Typically a raised 6 th and 7 th scale degree will ascend by step Typically a lowered 6 th and 7 th scale degree will descend by step

Diatonic triads in minor continued… The construction of triads is more involved than in major since ^6 and ^7 are variable and since nearly all contain ^6 and ^7, more diatonic triads are possible in minor. There are seven triads in minor that occur more frequently than the others, and those are the ones we will focus on and use in our examples.

Common Diatonic Triads in minor MajorIII, V and VI Minori and iv Diminishedii ◦ and vii◦ AugmentedNONE

Diatonic Seventh Chords in Major The chords built on each scale degree in a major scale can include a seventh above the root. Seventh-Chord TypeRoman NumeralExample Major SeventhUppercase with M7IM7 Major-minor SeventhUppercase with a 7V7 Minor SeventhLowercase with a 7vi7 Half-diminished Seventh Lowercase with a o/ii ◦ /7 Diminished SeventhLowercase with a ovii ◦ 7

Another Chart! M7IM7 and IVM7 Mm7V7 m7ii7, iii7, and vi7 /o7vii/o7 o7NONE

Diatonic Seventh Chords in minor FINAL CHART! Due to the variability of ^6 and ^7, there are a 16 diatonic seventh chords in minor. The chart will show the most commonly used on each scale degree M7IIIM7 and VIM7 Mm7V7 m7i7 and iv7 /o7ii/o7 o7viio7