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Common Secondary Dominant Chords: I Iv V I Iv - V I Iv V/V V BB Eb F BB Eb - F BB Eb C F

A secondary dominant chord is a harmonic device that uses the dominant chord (V) of another diatonic chord to temporarily tonicize that chord. It is notated as a roman numeral with a V followed by a slash and the chord being tonicized, such as V/ii. To write a secondary dominant chord, you first identify the chord to tonicize, then find its major scale and dominant chord, spell that dominant chord, and use it before the tonicized chord in the progression. Examples of common secondary dominant chords are V/ii, V/iii, V7/IV, V/V, and V/vi.

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589 views1 page

Common Secondary Dominant Chords: I Iv V I Iv - V I Iv V/V V BB Eb F BB Eb - F BB Eb C F

A secondary dominant chord is a harmonic device that uses the dominant chord (V) of another diatonic chord to temporarily tonicize that chord. It is notated as a roman numeral with a V followed by a slash and the chord being tonicized, such as V/ii. To write a secondary dominant chord, you first identify the chord to tonicize, then find its major scale and dominant chord, spell that dominant chord, and use it before the tonicized chord in the progression. Examples of common secondary dominant chords are V/ii, V/iii, V7/IV, V/V, and V/vi.

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Non-diatonic chord functions:

- secondary dominants
Another name for the I chord in a key is the tonic. Any chord can become tonic through tonicization. A secondary
dominant chord is a harmonic device used to tonicize a diatonic chord by adding its dominant chord (V) before itself.
When analyzing with roman numerals a secondary dominant chord is written as a V followed by a slash and whichever
chord is being tonicized. A V/ii is read “five of two,” it comes before the ii chord, and can come from any chord that would
go to a ii. Here are the steps for writing a secondary dominant chord.

1. Identify the chord that needs to be tonicized


2. Write out the major scale of the chord you want to tonicize
3. Find the V chord in that key
4. Spell the V chord in that key
5. Use that spelling for the secondary dominant chord
IT MIGHT HAVE AN ACCIDENTAL (# or b) IN IT!!!

I IV V Here is a simple I IV V progression in the key of Bb.


To make this progression richer we are going to Bb Eb F
tonicize the V chord.
I IV __ V 1. The V chord in the key of Bb is F major. Bb Eb __ F
2. F major scale: F G A Bb C D E F
I IV V/V V 3. V chord in the F major scale: C major Bb Eb C F
4. C major: C, E, G
5. E is the non diatonic note in the chord

Here are three examples of secondary dominant functions in chord progressions using closed voiced triads in treble clef.

Key: G major Key: E major Key: Ab major

I V/vi vi IV I IV V/ii ii V I IV V/V V I

Common secondary dominant chords


V/ii “five of two” also called VI “major six”
V/iii “five of three” also called VII “major seven”
V7/IV “five of four” also called I7 “dominant one”
V/V “five of five” also called II “major two”
V/vi “five of six” also called III “major three”
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